When considering variations in Earth-Sun relations from the three factors in Milankovitch cycles, which factor corresponds to changes in the shape of Earth's orbit around the sun? precession obliquity eccentricity
Answers
The Earth-Sun relations from the three factors in Milankovitch cycles, the factor that corresponds to changes in the shape of Earth's orbit around the Sun, is eccentricity. Thus, the correct option is C.
Milankovitch cycles are proposed that changes in the geometry of the Earth's orbit around the sun are responsible for the advance and retreat of continental ice sheets. There are three types of orbital variations and are eccentricity, precession, and obliquity.
Eccentricity is Earth's orbit around the sun. The variation of eccentricity affects the distance between the Earth and the sun. Obliquity is defined as the tilt of the Earth's rotational axis. It has a cycle of 41000 years. Changes in obliquity change the angle in the Earth's axis. Precession is defined as the solstices and equinoxes in the eccentric orbit. Change in precession changes the direction of the earth.
The shape of Earth's orbit around the sun is eccentricity. Thus, the correct option is C.
To learn more about the Milankovitch cycle:
https://brainly.com/question/30928549
#SPJ4
Related Questions
4. Magnets with one pole are now routinely made.
True or False
Answers
Answer:
False
Explanation:
Increasing the distance between an electromagnet and the compass will cause the observed effect of the compass to _____.
Answers
Increasing the distance between an electromagnet and the compass will cause the observed effect of the compass to decrease in strength
What would the Increasing the distance between an electromagnet and the compass cause?
The strength of the magnetic field produced by an electromagnet decreases as the distance from the electromagnet increases. This means that if the distance between the electromagnet and the compass increases, the magnetic field that the compass is experiencing will weaken.
As a result, the observed effect of the compass will decrease in strength as the distance between the electromagnet and the compass increases.
Read more on observed effect here:https://brainly.com/question/28146505
#SPJ1
Five 6 ohm resistors are connected in parallel. Which of the following is their effective resistance?
A. 6 ohm
B. 1.2 ohm
C. 30 ohm
D. 5/6 ohm
Answers
1/Rt = 1/R1 + 1/R2 + 1/R3+ 1/R4+ 1/R5
1/Rt = 1/6+ 1/6+1/6+1/6+1/6
1/Rt = 5/6
Rt = 6/5
Rt = 1.2 ohm
so B is the answer
A product P is produced from reagents A and B, but unfortunately it can further react with one reagent and degrade at the reaction conditions. The two steps are 1: 2: A + 2B -P 2P +B-X The reaction takes place in liquid phase and B is present in significant excess. The initial concentrations of A and B are, CA = 0.57 mol/L and CB.=55.57 mol/L respectively (there is nothing else in the initial mix). The first step of the reaction is a zero order reaction, while the second step is described by a first order rate at the conditions in the reactor. It is known that at the temperature of operation of 70 °C the two rates are: -11 = = 0.025 mol of A/(L.min) -12 = K2 Cp = 0.0075 CP mol of P/(L.min) a. Determine the net rates of reaction of all components AND the expression for instant selectivity [40 Marks] b. Based on the material balances to a batch reactor that will be used for this reaction, derive the expression with which you can obtain the concentration of P over time. [40 Marks] C. According to the expression you achieved for Co, under which conditions will the desired product P be at its maximum concentration? [20 Marks)
Answers
The net rates of reaction for all components and the expression for instant selectivity are determined. The concentration of P over time in a batch reactor is derived, and the conditions for maximum concentration of P are discussed based on the rate-determining step.
a. The net rate of reaction for component A is given by -11 = -0.025 mol of A/(L.min), as it is a zero order reaction. The net rate of reaction for component P is given by -12 = K2 * Cp = 0.0075 CP mol of P/(L.min), as it is a first order reaction. The net rate of reaction for component B can be calculated by considering the stoichiometry of the two steps.
The instant selectivity is the ratio of the net rate of production of P to the net rate of consumption of A, which can be expressed as selectivity = -12 / -11.
b. Based on material balances for a batch reactor, the rate of change of concentration of P over time (dCp/dt) can be expressed as (dCp/dt) = -2 * (-12) = 0.015 CP mol/(L.min), using the stoichiometry of the reaction.
c. To determine the conditions for maximum concentration of P, we need to consider the rate-determining step. Since the second step is first order, it determines the overall rate of the reaction. To maximize the concentration of P, we need to maximize the rate of the second step. This can be achieved by increasing the concentration of P or the concentration of B while keeping the other reactants at their initial concentrations.
Learn more about first order reaction here:
https://brainly.com/question/31661139
#SPJ11
At which second does the motorcycle start to have positive acceleration? 1 2 3 4
Answers
The correct answer for the qiven question at what second does the motorcycle start to have positive acceleration is 4.
Assuming that the time elapsed between any two consecutive dots is the same, and that the second dot marks second 1, the column with 3 dots marks second 2, and the dot right most marks second 3, the motorcycle has positive acceleration after 4 seconds.
That is because:
1) from the first dot to the second dot: the velocity the length of the arrow that models the velocity decreases, which means that the acceleration is negative.
2) In the next group of dots the length of the arrow remains equal, which means that the velocity is constant and the acceleration is 0.
3) For the last dot, the length of the arrow is greater, which means that the velocity increases, and so the acceleration is positive.
For more questions on velocity, click on:
https://brainly.com/question/80295
#SPJ8
A karate expert executes a swift blow and splits a cement block with her hand. The force is high since the
momentum is decreased
momentum is increased
mass of the block is so high
time of impact is so low
Answers
Answer:
has f uped hands
Explanation:
is there a chest brace i can use because what can i use because it is to heavy to hold my cannon camera
Answers
There are several types of chest braces that can be used to support a heavy camera. The include a camera harness, camera chest mount and stabilizing rig
One option is a camera harness, which distributes the weight of the camera across the shoulders and upper chest. Another option is a camera chest mount, which attaches the camera directly to the chest using straps. A third option is a stabilizing rig, which attaches to the camera and uses counterweights to balance the camera and reduce the strain on the user's arms. It is important to use the chest brace that best fits your needs and also consult with a professional if you have any doubts.
Learn more about chest brace for holding heavy camera equipment here:https://brainly.com/question/15388455
#SPJ4
before each item.
1. Which of the following refers to chemical digestion?
A. Chewing of food B.. Grinding of food C. Tearing of food D. Amylase in the saliva
2. In what organ most of the absorption process happen?
A. Stomach B. Small intestine C. Large intestine D. Esophagus
3. It is a digestive disorder wherein the body has the inability to digest sugar?
A. Gastritis B. Lactose intolerance
C. Diarrhea D. Peptic ulcer
4. The following are part of the digestion process EXCEPT
A. ingestion B. assimilation
C. excretion D. respiration
5. It helps to moisten the food and contains the enzyme amylase.
A. Saliva
B. Stomach C. Mouth D. Teeth
6. It is a process of taking in digested food nutrients into the cell by providing new protoplasm and energy
needed during the cell activities.
A. Ingestion B. assimilation C. Absorption D. Excretion
7. What causes constipation?
A. Lack of fiber in the body B. Uncontrolled growth of abnormal cells
C. Lack of enzyme lactase D. Excessive consumption of coffee and acidic drinks
8. The nutrients from the digested food are being absorbed by the following processes except
A. passive diffusion B. facilitated diffusion C. active transport D. ingestion
9. It is the organ that is responsible for reabsorbing water and minerals that are not digested in the small
intestine.
A. Stomach B. Large intestine C. Small intestine
D. Esophagus
10. The following are the reasons why digested food should be assimilated into the cell EXCEPT
A. they are converted into protoplasm. C. they provide energy needed in cell activities
B. they are needed to store fats. D. they are converted to build cell membranes
11. What is the best treatment for a person who suffers lactose intolerance?
A. Take antibiotics
B. Balanced diet
C. Take lactase supplements before eating food contains dairy D. Practice healthy lifestyle
12. What happen during the assimilation process?
A. Absorbed nutrients are delivered into the cell
B. Breaking down of food into tiny pieces
C. Elimination of waste product of the digestion process D. Absorption of nutrients from the digested food
13. How does the enzyme amylase help in the absorption of nutrients?
A. It helps in the digestion of proteins.
B. It helps in the digestion of fats.
C. It helps in the digestion of carbohydrates. D. It helps in the digestion of lipids.
14. It is characterized as loose bowel caused by an infection of bacteria that we get from the food we eat.
D. GERD
A. Diarrhea
C. Gastritis
B. Peptic Ulcer
15. How saliva helps in the digestion process?
A. It reabsorbs nutrients from the food we eat.
B. It contains the enzyme amylase that helps in the digestion of starch.
C. It absorbs nutrients and distribute it in the bloodstream.
D. All of the above
16. How colon cancers can be treated?
B. By exercising
A. By eating foods rich in fiber
D. By undergoing surgeries.
g C. By taking lactase supplements
Answers
Answer:
1:D
2:B
3:B
4:D
5:A
13:A
14:A
15:B
16:A
7:A
9:B
8:B
11:C
12:A
Explanation:
Sorry for incomplete answers
Using the results from your post-fitness assessment, write a three-paragraph reflection addressing the following questions. Be sure to address all portions of the prompt in your reflection.
Journal prompt to be answered in 3 fully developed paragraphs citing specific examples from the pre-assessment.
In paragraph 1, summarize your results for each part of the assessment. Were there areas that surprised you about your results(able to complete more or less than you thought)?
In paragraphs 2 and 3, respond to the following: What is the purpose of completing a post-assessment? How can you analyze the data and use it to create a plan? What areas of the assessment would like to improve upon? How have you improved from your pre-assessment?
Answers
In reflecting on the assessment results I found that I was generally able to complete most parts successfully
The areas covered in the assessmentHowever I was surprised by my performance in the section that required complex problem-solving skills as I struggled more than expected On the other hand I was pleased with my ability to communicate effectively in the written portion
The purpose of completing a post-assessment is to evaluate progress and identify areas for improvement By analyzing the data from the assessment I can identify strengths and weaknesses which helps in creating a development plan For instance if time management was an issue during the assessment strategies can be implemented to improve efficiency and task prioritization Analyzing the data allows for a focused approach to skill enhancement
One area I would like to improve upon is critical thinking I noticed that I sometimes struggled to analyze complex information and draw logical conclusions To address this I plan to practice critical thinking exercises engage in analytical discussions and seek out relevant resources On a positive note I have improved my time management skills since the pre-assessment becoming more conscious of time constraints and allocating my time more efficiently across different sections
In conclusion the post-assessment provides an opportunity for self-reflection and growth Analyzing the data identifying areas for improvement and implementing targeted strategies are key steps towards enhancing skills and performance
The progress made since the pre-assessment highlights the effectiveness of intentional practice and focused effort Continuous self-assessment and improvement will contribute to further strengthening of abilities and the achievement of personal goals
Read more on post-assessment here:https://brainly.com/question/30758649
#SPJ1
an image formed on a screen is always
Answers
Answer:
diminished and erect( upright)
Explanation:
Temperature change in adiabatic heating occurs due to...
a. water vapor condensing
b. a pressure increase
c. absorption of sunlight
d. a pressure decrease
e. a volume increase
Answers
Temperature change in adiabatic heating occurs due to: (b) a pressure increase.
An adiabatic process is defined as : The thermodynamic process in which there is no exchange of heat from the system to its surrounding neither during expansion nor during compression.The adiabatic process can be either reversible or irreversible. Following are the essential conditions for the adiabatic process to take place:
The system must be perfectly insulated from the surrounding.The process must be carried out quickly so that there is a sufficient amount of time for heat transfer to take place.As we know, heat, temperature, and the external environment are factors responsible for the flow of heat from one system to another. Changes do take place when heat is transferred. A process in which no heat transfer takes place is known as an adiabatic process.
There are several instances, some are stated below:
It is a process where there is a gas compression and heat is generated. One of the simplest examples would be the release of air from a pneumatic tire.Adiabatic Efficiency is applied to devices such as nozzles, compressors, and turbines. One of the good applications of the adiabatic process.To know more about thermodynamics visit:
https://brainly.com/question/14041640
#SPJ4
special relativity tells us that options: a) light moves faster if emitted by a source moving in the direction of emission and light moves slower if emitted by a source moving in the direction opposite the emission. b) light moves slower if emitted by a source moving in the direction opposite the emission. c) light moves at the same speed independent of the motion of the source. d) light moves faster if emitted by a source moving in the direction of emission. e) the speed of light is variable.
Answers
According to special relativity, the correct option is c) light moves at the same speed independent of the motion of the source. This principle is one of the fundamental tenets of special relativity and is known as the constancy of the speed of light.
In special relativity, the theory developed by Albert Einstein, the speed of light in a vacuum, denoted by 'c', is considered a fundamental constant of nature. It is the same for all observers, regardless of their motion relative to the source of light. This principle is known as the constancy of the speed of light.
One of the key consequences of this principle is that the speed of light is independent of the motion of the source. Whether the source of light is moving towards or away from an observer, the speed of light remains unchanged. This has been experimentally verified and has significant implications for our understanding of space, time, and the nature of reality.
Calculations are not required to explain this principle. The constancy of the speed of light is a fundamental postulate of special relativity, which has been validated through numerous experimental observations and is supported by a wide range of evidence and theoretical consistency.
To learn more about special relativity click here : brainly.com/question/14140033
#SPJ11
A resume is usually read for less than ____ seconds by an employer.
a. 10
b. 20
c. 30.
d. 40
Answers
A resume is usually read for less than C. 30 seconds by an employer.
A resume is a document that presents your educational qualifications, experiences, and achievements that have taken place throughout your academic career and professional life. This document is crucial in a job application process, and it plays a key role in determining whether an employer is interested in interviewing you or not. Thus, it is necessary to write a well-written and a concise resume that catches the employer's attention in less than 30 seconds. This is because most employers go through many job applications and they do not have much time to read every resume thoroughly.
Therefore, it is essential to organize and format the resume in such a way that the key information and skills stand out. In addition, it is necessary to customize the resume to fit the job requirements of each job application, this can be done by researching the company and the job position to determine what skills and qualifications the employer is looking for. In conclusion, it is crucial to ensure that the resume is well-written, organized, and customized to fit the employer's requirements. So the correct answer is C. 30.
Learn more about employer at:
https://brainly.com/question/31920624
#SPJ11
What is 2f In concave mirrors?
Answers
when a small object is launched from the surface of a fictitious planet with a speed of 51.6 m/s, its final speed when it is very far away from the planet is 32.7 m/s. use this information to determine the escape speed of the planet. m/s
Answers
The escape speed of a planet is the minimum speed required for an object to escape its gravitational pull and move infinitely far away. In this case, we are given the initial speed of the object (51.6 m/s) and its final speed when very far away from the planet (32.7 m/s).
We can use this information to determine the escape speed. The escape speed can be calculated using the formula:
Escape speed = √(2 * gravitational constant * mass of the planet / distance from the center of the planet)
Since we are not given the mass of the planet or the distance from its center, we cannot directly calculate the escape speed using this formula. However, we can make an approximation assuming that the final speed of 32.7 m/s is negligible compared to the escape speed. In this case, we can approximate the escape speed as the initial speed of the object:
Escape speed ≈ 51.6 m/s.
Therefore, the approximate escape speed of the planet is 51.6 m/s.
To know more about escape speed, click here https://brainly.com/question/28044195
#SPJ11
average method and it reports the tollowing unit data tor the rorming department. Units completed in the torming department are transferred to the painting department. Production cost information for the forming department follows. . Calculate the equivalent units of production for both direct materials and conversion for the Forming department. o. Calculate the costs per equivalent unit of production for both direct materials and conversion for the Forming department c. Using the weighted average method, assign costs to the forming department's output-specifically, its units transferred to painting and its endina work in brocess inventorv. Calculate the costs per equivalent unit of production for both direct materials and conversion for the For Jsing the weighted average method, assign costs to the forming department's output-specifically, its 4 d its ending work in process inventory. Complete this question by entering your answers in the tabs below. Calculate the equivalent units of production for both direct materials and conversion for the forming department. a. Calculate the equivalent units of production for both direct materials and conversion for the Forming departm b. Calculate the costs per equivalent unit of production for both direct materials and conversion for the Forming c. Using the weighted average method, assign costs to the forming department's output-specifically, its units tra and its ending work in process inventory. Complete this question by entering your answers in the tabs below. Calculate the costs per equivalent unit of production for both direct materials and conversion for the forming department Required information Using the weighted average method, assign costs to the forming department's output-specifically, its units trar painting and its ending work in process inventory.
Answers
Given information: The average method reports the following unit data for the forming department. Units completed in the forming department are transferred to the painting department. Production cost information for the forming department follows.
Direct materials:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Direct materials cost = $202,500
Conversion costs:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Conversion cost = $189,000
a. Calculation of equivalent units of production for both direct materials and conversion for the forming department:
Equivalent units of production = Units completed during the period + (Ending work in process inventory * Degree of completion)
Direct materials:
Equivalent units of production = 45,000 + (5,000 * 50%) = 47,500 units
Conversion costs:
Equivalent units of production = 45,000 + (5,000 * 60%) = 48,000 units
b. Calculation of the cost per equivalent unit of production for both direct materials and conversion for the forming department:
Cost per equivalent unit of production = Total cost for the period / Equivalent units of production
Direct materials:
Cost per equivalent unit of production = $202,500 / 47,500 units = $4.26 per unit
Conversion costs:
Cost per equivalent unit of production = $189,000 / 48,000 units = $3.94 per unit
c. Calculation of the cost assigned to the forming department's output using the weighted average method:
Total cost = Cost of units transferred out + Cost of ending work in process inventory
Cost of units transferred out = Number of units transferred out * Cost per equivalent unit of production
Cost of ending work in process inventory = Number of units in ending work in process inventory * Cost per equivalent unit of production
Direct materials:
Cost of units transferred out = 40,000 * $4.26 per unit = $170,400
Cost of ending work in process inventory = 5,000 * $4.26 per unit = $21,300
Total cost = $170,400 + $21,300 = $191,700
Conversion costs:
Cost of units transferred out = 40,000 * $3.94 per unit = $157,600
Cost of ending work in process inventory = 5,000 * $3.94 per unit = $19,700
Total cost = $157,600 + $19,700 = $177,300
Learn more about unit data:
https://brainly.com/question/31181436
#SPJ11
An object describes the speed and the direction in which it is going
Answers
Answer:
alright you take the numbers of the speed and d
irection and multiply ........ example....234×567 =?
Whether or not charges will move in a material depends partly on how tightly ______ are held in the atoms of the material.
Answers
Answer:
ELECTRONS
Explanation:
If an object that was held steady (0 speed) and then dropped, how many meters would it fall in one second?
Answers
Answer:
h = 4.905 m
Explanation:
In order to find the distance covered by the object in 1 second, we can use the second equation of motion:
\(h = v_i t + \frac{1}{2}gt^2\\\)
where,
h = distance covered = ?
vi = initial speed = 0 m/s
g = acceleration due to gravity = 9.81 m/s²
t = time = 1 s
Therefore,
\(h = (0\ m/s)(1\ s)+\frac{1}{2}(9.81\ m/s^2)(1\ s)^2\\\\\)
h = 4.905 m
if soap falls on the ground is the soap dirty or is the ground clean
Answers
Answer:
Soap is dirty
There are four scenarios:
1. The floor is already clean
2. The floor is dirty
3. The soap is clean
4. The soap is dirty
If the floor is already clean, and the soap is clean, you will have to pick up the soap, put it where it belongs and then clean the soap residue off of the already clean floor. Nothing more should be required.
If the floor is dirty and the soap was clean before it hit the floor, then now the soap is dirty. You will have to pick up the soap, wash it, and then put it away. Now you have a bigger problem. The clean soap touched the dirty floor in one spot. You can’t just clean on spot on a dirty floor, it would not make sense. So now you have to clean the whole floor.
If the floor was clean and the soap was dirty, now the floor is contaminated with dirtiness. You will have to pick up the soap, wash it, and then clean the contaminated floor.
Now if the soap was dirty before it fell, and the floor was dirty before the soap fell on it, you will have to gather the soap, clean it, put it away and then clean the whole floor.
And now, to complicate things more, what if you picked up the soap with dirty hands? Are your hands still dirty or are your hands now clean? Or, Maybe you have clean hands and picked up a dirty soap bar. Now what is dirty and what is clean? In the food processing industry, which I am a part of, we would say that all is contaminated and all has to be washed again. So to be safe and to be absolutely certain that everything is clean, it is the best practice to wash everything when in doubt.
If you did not mean “a bar of soap”, then all of this is out the window. I will have to start over. Like liquid soap is way different. Powdered soap is a whole other process .
put the pairs of atoms in order, with the pair that has the biggest electronegativity difference between the two atoms at the top of your list
Answers
The pair that has the biggest electronegativity difference between the two atoms at the top of your list is given below:
Flourine and FranciumChlorine and CesiumNitrogen and SodiumPhosphorus and LithiumNitrogen and Sulphur.Why is higher electronegativity significant?In a covalent bond, an atom's ability to draw shared electrons is referred to as electronegativity. The strength with which an element attracts the shared electrons depends on the value of its electronegativity.
Therefore, An atom's or functional group's propensity to draw electrons to itself is known as electronegativity, which is a chemical property. An atom's electronegativity is influenced by both its atomic number and the separation of its valence electrons from its charged nuclei.
Learn more about electronegativity from
https://brainly.com/question/4209994
#SPJ1
See full question below
Put the pairs of atoms in order, with the pair that has the biggest electronegativity difference between the two atoms at the top of your list. Fluorine and Francium, Phosphorus and lithium, nitrogen and sodium, Chlorine and cesium, nitrogen and sulfur.
Suppose the current in a conductor decreases exponentially with time according to the equation I(t) = I0e-t/τ, where I0 is the initial current (at t = 0), and τ is a constant having dimensions of time. Consider a fixed observation point within the conductor. (Use the following as necessary: I0 and τ)
(a) How much charge passes this point between t = 0 and t = τ? (If applicable, round any coefficients to 3 decimal places.)
Q(τ) =
(b) How much charge passes this point between t = 0 and t = 10τ? (If applicable, round any coefficients to 5 decimal places.)
Q(10τ) =
(c) How much charge passes this point between t = 0 and t = [infinity]? (If applicable, round any coefficients to 3 decimal places.)
Q([infinity]) =
Answers
The charge on the point as it passes is 10τ, the charge on this point is 10τ(1-e-10), and the charge that passes this point is 10τ.
The charge that passes this point between t = 0 and t = τ can be calculated using the following equation:
Q(τ) = I0τ
Therefore, Q(τ) = I0τ = I0 × τ.
The charge that passes this point between t = 0 and t = 10τ can be calculated using the following equation:
Q(10τ) = I0τ(1-e-10)
Therefore, Q(10τ) = I0τ(1-e-10) = I0 × τ × (1-e-10).
The charge that passes this point between t = 0 and t = [infinity] can be calculated using the following equation: Q([infinity]) = I0τ
Therefore, Q([infinity]) = I0τ = I0 × τ.
Learn more about Charge here:
https://brainly.com/question/11944606
#SPJ11
HURRY PLEASE Three resistors of 100 W, 3900 W, and 1000 W are connected in series across a 200-V battery. What is the voltage drop across the resistor of value 1000 W? please add an explaination.
Answers
Answer:
If the resistors are in series the current thru the circuit will be the same for all of the resistors,
Normally, the value of a resistor is given in ohms but the question seems to imply that resistance is given in watts.
3900 + 1000 + 100 = 5000 watts total power used in the circuit
P = I V
5000 = I * 200 volts
I = 25 amps
So I^2 R = 1000 watts for the named resistor
R = 1000 / 25^2 = 1.6 ohms for the 1000 watt resistor
V = I * R = 25 amps * 1.6 ohms = 40 V across that resistor
Check: 3900 / 1000 * 40 = 156 volts
100 / 1000 * 40 = 4 volts
Total voltage drop = 40 + 156 + 4 = 200 volts as given
suppose you take and hold a deep breathe on a chilly day, inhaling 3.0 L of air at 0 degrees C. Assume air pressure is 1atm.
a. How much heat must your body supply to warm the air to your internal temp of 37 degrees C?
b. How much does the airs volume increase as it is warmed?
Answers
The mass of 3.0 L of air is 1.29 kg/m^3 * 3.0 L = 3.87 kga. The volume of the air increases by 3.35 L - 3.0 L = 0.35 L.
In order to warm the 3.0 L of air from 0 degrees C to 37 degrees C, your body must supply heat equal to the specific heat of air (1.005 kJ/kg*K) multiplied by the mass of the air (since density = mass/volume) and the change in temperature. Assuming the air is at standard conditions (1 atm and 0 degrees C), the density of air is 1.29 kg/m^3. Therefore, the mass of 3.0 L of air is 1.29 kg/m^3 * 3.0 L = 3.87 kg. The change in temperature is 37 degrees C - 0 degrees C = 37 K. So, the heat your body must supply is 1.005 kJ/kg*K * 3.87 kg * 37 K = 141.6 kJ.
b. The volume of the air can be calculated using the ideal gas law: PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the universal gas constant, and T is temperature. Assuming the air behaves ideally, we can use this equation to calculate the new volume of the air after it is warmed to 37 degrees C. The number of moles of air can be calculated using the ideal gas law again: n = PV/RT. At standard conditions, the number of moles of air in 3.0 L is 0.129 mol. At 37 degrees C, the new volume of the air is V = nRT/P = 0.129 mol * 8.314 J/mol*K * (37+273) K / 1 atm = 3.35 L. Therefore, the volume of the air increases by 3.35 L - 3.0 L = 0.35 L.
To know about volume :
https://brainly.com/question/28058531
#SPJ11
A hover board is moving at 6 m/s . If it slows down at a rate of -3 m/s per second, how long is the board in the air before coming to rest? Round to 4 decimal places if necessary
Answers
Explanation
a uniformly accelerated motion is the one in which the acceleration of the particle throughout the motion is uniform,to fidn the time take we can use the formula:
\(\begin{gathered} t=\frac{v_f-v_1}{a} \\ where \\ v_f\text{ is the final velocity} \\ v_{i\text{ }}\text{ is the initail velocity} \\ a\text{ is the acceleration, so} \end{gathered}\)Step 1
a)Let
\(\begin{gathered} v_i=6\text{ }\frac{m}{s} \\ v_f=0(\text{ rest\rparen} \\ a=-3\frac{m}{s^2} \end{gathered}\)b) now, replace
\(\begin{gathered} t=\frac{v_{f}-v_{1}}{a} \\ t=\frac{0-(-6\frac{m}{s})}{3\frac{m}{s}} \\ t=2\text{ seconds} \end{gathered}\)therefore, the answer is 2 seconds
I
Law of conservation of matter (mass)
Answers
Answer:
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added nor removed. Hence, the quantity of mass is conserved over time
Explanation:
you are pushing on a 10 kg chair with a force of 52 n, but it does not move? what is the magnitude of the static friction force in newtons?
Answers
When you are pushing on a 10 kg chair with a force of 52 n and it does move. The magnitude of the static friction force acting on the chair is 52 N.
The fact that the chair does not move despite the applied force indicates that the static friction force is equal in magnitude and opposite in direction to the applied force. Therefore, the magnitude of the static friction force is 52 N.
The applied force on the chair is 52 N. This force is being exerted to try and move the chair.
The chair does not move, which means that there is an opposing force preventing its motion.
In this case, the opposing force is the static friction force, which arises when two surfaces are in contact and there is no relative motion between them.
The static friction force adjusts its magnitude to match the applied force and prevent the motion of the chair.
Since the chair is not moving, the static friction force must be equal in magnitude and opposite in direction to the applied force of 52 N.
Therefore, the magnitude of the static friction force acting on the chair is 52 N.
For more such questions on static friction , click on:
https://brainly.com/question/25050131
#SPJ8
On Distance Displacement Position vs. Time graphs. Velocity vs. Time graphs, and Acceleration vs. Time graphs, which vanable is always on the x-axis? A:Distance/Displacement/Position C:Acceleration B:Time D:Velocity
Answers
Answer:
your question dosent make sense?
Explanation:
Answer:
The time is always in the x axis.
Explanation:
suppose that an object is dropped, not from the earth's surface, but from a height rearth above the earth's surface. with what acceleration will it start to fall? give your answers as a fraction of gearth
Answers
The acceleration of the object when it will start falling from the height above the earth is ( 1/9 ) gₓ.
Acceleration due to gravity from the height = gₙ
Acceleration due to gravity on earth = gₓ
Distance between the core of earth and the point at a height above earth = h
Radius of the earth = rₓ
Now, for h = rₓ
= Using the gravitational formula
= gₙ = gₓ ( rₓ / (rₓ + rₓ))²
= gₙ = ( 1/4 ) gₓ
Similarly for h = 2rₓ,
= gₙ = gₓ ( rₓ / (rₓ + rₓ))²
= gₙ = ( 1/9 ) gₓ
To know more about Acceleration:
https://brainly.com/question/13944793
#SPJ4
he first right-hand rule relates which two quantities?
A.
current (thumb) to magnetic field (fingers)
B.
magnetic field (thumb) to current (fingers)
C.
current (thumb) to force (fingers)
D.
force (thumb) to current (fingers)
Reset Next
Answers
Answer: A.
current (thumb) to magnetic field (fingers)
Answer:
A. current (thumb) to magnetic field (fingers)
Explanation:
According to the Right-Hand Thumb rule, if we are holding a current- carrying straight conductor in our right hand such that the thumb points toward the direction of current, then the fingers will wrap around the conductor in the direction of the field lines of the magnetic field.
Hope it helps.
If you have any query, feel free to ask.