the force acting on that object
Suppose 79.3 J of heat are added to a 111-g piece of aluminum at 22.5 degrees celsius. What is the final temperature of the aluminum?
The final temperature of the aluminum is approximately 819.36°C.
To find the final temperature of the aluminum, we can use the specific heat capacity equation:
Q = mcΔT
Where:
Q is the heat added to the aluminum (79.3 J),
m is the mass of the aluminum (111 g), and
c is the specific heat capacity of aluminum (0.897 J/g°C).
First, let's convert the mass of aluminum to kilograms:
m = 111 g = 0.111 kg
Now we can rearrange the equation to solve for the change in temperature (ΔT):
ΔT = Q / (mc)
Substituting the given values:
ΔT = 79.3 J / (0.111 kg * 0.897 J/g°C)
Calculating the value of ΔT:
ΔT = 79.3 J / (0.099567 kg°C)
ΔT ≈ 796.86 °C
To find the final temperature, we add the change in temperature (ΔT) to the initial temperature (22.5°C):
Final temperature = 22.5°C + 796.86°C
Final temperature ≈ 819.36°C
Therefore, the final temperature of the aluminum is approximately 819.36°C.
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A load of 600 N is lifted using a first-class lever applying an effort of 350 N. If the distance between the fulcrum and the effort is 60 cm, calculate load distance
Explanation:
Hope it will help you a lot.
Lizard able to run in ceilings and walls.why?
Answer:
because of their web feet
Explanation:
oke
Answer:
Reptiles have an enormous number of extremely minuscule hairs on the stack of their feet called setae. These little cushions subsequently radically increment the surface zone and come in close contact with the surface on which the reptile is creeping, so the Van der Waals forces kick in.
Explanation:
Hope this helped!
A 10-kg crate is on a plane that is inclined at an angle of 45°. The coefficient of friction is
0.1, and the downward direction is positive. What is the approximate rate of the box's
acceleration?
If a 10-kg crate is on a plane that is inclined at an angle of 45°. The coefficient of friction is 0.1, and the approximate rate of the box's acceleration would be 6.242 m/s².
What is friction?When two physical objects' surfaces come into contact, a force called friction acts to hinder or oppose the relative motion of the items.
A 10-kg container is on a plane that is 45° inclined, as stated in the issue. The downhill direction is positive and the coefficient of friction is 0.1.
The force along the surface of the inclined plane,
ma = mgsin45° - 0.1×mgcos45°
a = 9.81(0.707 - 0.0707)
= 6.242 m/s²
The acceleration of the block would be 6.242 m/s².
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A plastic bottle partially filled with water floats on water, even though the density of the plastic (1.2 g/cc) is more than that of water. Why is that?
Answer:
True the plastic will float because of the principle of flotation or buoyancy
Explanation:
Buoyancy explains it all!!
Buoyancy is the upward force/upthrust experienced by a body immersed totally or partially in a liquid.
According to the principle of flotation:
"when a body is totally or partially immersed in liquid it experiences an upthrust which is equal to the volume of fluid displaced"
The plastic will float due to the fact the average density of the total volume of the plastic and the air inside it is less than the same volume of water it is floating in
What are some model limitations?
Answer:
Missing Details, Most Are Approximations,Simplicity
Explanation:
I just had this question
What are the physics of anesthesia and what would be an example of physics in anesthesia?
The physics of anesthesia involve the understanding of how anesthetics affect the body at the molecular and cellular level, as well as the physical processes involved in administering and monitoring anesthesia.
How is anesthesia used?One example of physics in anesthesia is the use of gas laws to calculate the behavior of anesthetic gases in the body. The concentration of anesthetic gas delivered to a patient is determined by the partial pressure of the gas, which is directly proportional to its concentration and the total pressure of the gas mixture.
Anesthesiologists use these principles to precisely control the concentration of anesthetic gases during surgery, minimizing the risk of complications.
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hand pushes on table with force of 35 N forward. whats the reaction force
Answer:
i think it is newtons third law of motion but i'm not sure sorry.i just really need point i don't know the answer.
Explanation:
a race car is moving at a constant speed around a track.What about the race car is changing and why
A race car is moving at a constant speed around a track. The race car is changing its velocity as the direction of motion changes.
What is velocity?The primary indicator of an object's position and speed is its velocity. It is the distance that an object travels in one unit of time. The displacement of the item in one unit of time is the definition of velocity.
The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.
As the race car is moving at a constant speed around a track, the magnitude of velocity remains same but during race it may changes its direction of motion, that is why, velocity of it, which depends on both magnitude and direction, may changes.
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Explain why a steel boat floats on water but a steel block does not
A piece of steel sinks in water because steel is denser than water. However, a steel ship is a hollow object made of steel and contains a lot of air in it. Due to presence of a lot of air in it, the average density of the ship becomes less than the density of water. Hence a ship floats in water.
Answer:
Cause its a steel block
Explanation:
thats like putting a brick in the water and expecting it to float
In terms of the wavelength of the sound wave, how far apart are the first two resonant positions in the resonance tube?
A.Three quarters of the wavelength
B.One quarter of the wavelength
C.One half of the wavelength
D.One wavelength
The distance between the first two resonant positions in a resonance tube is One half of the wavelength of the sound wave. Option C
How did we determine the distance between the first two resonant positions?In a resonance tube experiment, the first two resonant positions occur when the length of the tube equals one quarter of the wavelength and then three quarters of the wavelength.
These positions correspond to the first and second resonant frequencies, or harmonics.
Therefore, the distance between these two positions, in other words, the length of the tube at the second resonant position minus the length of the tube at the first resonant position, equals three quarters of the wavelength minus one quarter of the wavelength, which is half a wavelength.
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Free-body diagrams for four situations are shown below. For each situation, determine the net force acting upon the object. Your answer must include both the magnitude and the direction of the net force vector. You should have four (4) total responses to this question (labeled A, B, C, and D).
The magnitude and direction of the net force are:
A: the net force is 3N in the downward direction,
B: the net force is zero,
C: The net force is 5N in the downward direction,
D: The net force is 4N in the right direction.
What is the net force?The net force of an object can be described as the vector sum of all the forces acting on an object. The net force is a single force that shows the same effect as the original forces on the particle's motion.
The net force becomes the resultant force. The net force has the same effect on the rotational motion as all original forces together by the object.
The mathematical expression can be written for the net force as:
\(\vec F_{net} = \vec F_{x} + \vec F_{y}\)
For figure (A), the net force is equal to :
F = (2N - 2N) + (2N - 5N) = - 3N
So the magnitude of the force is 3N in the downward direction.
For figure (B), the net force is equal to :
F = (2N - 2N) + (5N - 5N) = 0
So the magnitude of the net force is equal to zero.
For figure (C), the net force is equal to :
F = (5N - 5N) + (5 N) = 5 N
So the magnitude of the net force is 5N in the downward direction.
For figure (D), the net force is equal to :
F = (2N - 2N) + (7N - 3N) = 4N
So the magnitude of the net force is 4N towards the right direction.
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How many groups are in the modern periodic table? O 12 o 18 o 22 O 24
Answer:
in the mordern periodic table there are 18 groups
There are a total of 18 groups in the modern periodic table, therefore the correct answer for the given problem is option B
What is the atomic number?The total number of protons present in an atom is known as the atomic number of that atom. The atomic number has no correlation either with the number of neutrons or the number of electrons present inside an atom.
While the total amount of protons and neutrons found inside of every atom adds up to form the atomic mass of an atom.
The modern periodic table is arranged on the basis of the increasing atomic numbers of the elements, There are a total of 18 groups and 8 periods in the modern periodic table.
Thus, There are a total of 18 groups in the modern periodic table, therefore the correct answer for the given problem is option B
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light travels up through a pond of water of critical angle 49 degrees.what happens at the surface if the angle is 60 degrees
When light travels from a medium with a better refractive record (such as water) to a medium with a lower refractive record (such as air), it can experience a wonder called total internal reflection. This happens when the point of frequency of the light at the boundary between the two media surpasses a critical point.
What happens at the surface if the angle is 60 degrees?Within the given situation, if the angle of incidence of the light at the water-air interface is 60 degrees, and the critical angle for water is 49 degrees, at that point the light will not undergo total inside reflection. Instep, it'll refract (twist) because it crosses the boundary and enters the air. The precise sum of refraction will depend on the point of frequency and the refractive lists of water and air.
Hence, since the angle of incidence(60 degrees) is more noteworthy than the critical angle (49 degrees), the light will pass from water into air and proceed its way within the air medium, possibly refracting absent from the typical line (the line opposite to the surface of the water). It'll not be reflected back into the water due to internal reflection.
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if each nail can support a shear force of 200 lb , determine the maximum spacing of the nail s . express your answer to three significant figures and include appropriate units
To determine the maximum spacing of the nails, we need to consider the maximum shear force that the nails can collectively support.
Let's assume that the maximum allowable shear force for the entire structure is also 200 lb. This means that the total shear force should not exceed 200 lb.
To find the maximum spacing, we need to consider the worst-case scenario where the load is concentrated at a single nail. In this case, the spacing between nails should be such that the load is evenly distributed among them.
Let's denote the maximum spacing between nails as "s" (in inches). We can calculate the number of nails required to distribute the load evenly by dividing the total force by the maximum force supported by each nail:
Number of nails = Total shear force / Maximum shear force per nail
Number of nails = 200 lb / 200 lb = 1
Since we assume the load is concentrated at a single nail, we need at least one nail to support the entire force.
The maximum spacing between the nails will be the distance between the nails, which is zero since there is only one nail supporting the force.
Therefore, the maximum spacing of the nails is 0 inches.
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Light of wavelength λ = 610 nm and intensity i0 = 270 w/m2 passes through a slit of width w = 1.2 μm before hitting a screen l = 1.5 meters away. Use the small angle approximation to write an equation for the phase difference, β, between rays that pass through the very top and very bottom of the slit when the rays hit a point y = 61 mm above the central maximum. 33% Part (b) Calculate this phase difference, in radians?
The phase difference between the rays passing through the very top and very bottom of the slit and hitting a point 61 mm above the central maximum is approximately 0.0628 radians.
To calculate the phase difference, β, between rays that pass through the very top and very bottom of the slit and hit a point above the central maximum, we can use the small angle approximation.
The small angle approximation states that for small angles, the sine of the angle is approximately equal to the angle itself. In this case, we can consider the angle between the central maximum and the point above it to be small, allowing us to use this approximation.
The equation for the phase difference, β, between the top and bottom rays can be written as:
β = (2π / λ) * Δy
where:
λ is the wavelength of light (610 nm),
Δy is the vertical distance between the point above the central maximum and the central maximum.
Given that Δy = 61 mm = 0.061 m, we can substitute the values into the equation:
β = (2π / 610 nm) * 0.061 m
To calculate the phase difference in radians, we need to convert the wavelength to meters:
610 nm = 610 * 10^(-9) m
Substituting the values and calculating:
β = (2π / (610 * 10^(-9) m)) * 0.061 m
β ≈ 0.0628 radians
Therefore, the phase difference between the rays passing through the very top and very bottom of the slit and hitting a point 61 mm above the central maximum is approximately 0.0628 radians.
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would the absolute value of the work done by an external agent in moving the same test charge from point a to point c be greater than, less than, or equal to w ab? explain
The absolute value of the work done by an external agent in moving the same test charge from point a to point c may be greater than, less than, or equal to wab, depending on the force exerted by the external agent and the distance traveled by the charge.
First, let's define what we mean by work done by an external agent. When a test charge is moved from one point to another in an electric field, the electric field exerts a force on the charge, and this force does work on the charge. The work done by the electric field is a measure of the energy transferred to or from the charge as it moves.
However, in some cases, an external agent, such as a person or a machine, may exert a force on the test charge to move it from one point to another. In this case, the work done on the charge is done by the external agent, not the electric field.
Now, let's consider the scenario where a test charge is moved from point a to point c. We know that the work done by the electric field in moving the charge from point a to point b is wab.
If the test charge is then moved from point b to point c by an external agent, the work done by the external agent will depend on the force exerted by the agent and the distance traveled by the charge.
If the force exerted by the external agent is greater than the electric field force, the work done by the external agent will be greater than wab. This is because the external agent is doing more work on the charge to move it from point b to point c than the electric field did to move it from point a to point b.
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Object A has a charge of -1.6 x 10-13 C, and object B is electrically neutral. Two million electrons are removed from object A and placed on object B. Expressed in coulombs, what is the resulting charge (algebraic sign and magnitude) on object A and on object B
The resulting charge on object A is \(+1.6 \times 10^{(-13)\) C, indicating a positive charge, while the resulting charge on object B is \(-3.2 \times 10^{(-13)\) C, indicating a negative charge.
Initially, object A has a charge of \(-1.6 \times 10^{(-13)\) C, indicating an excess of negative charge. Object B is electrically neutral, meaning it has an equal number of positive and negative charges.
When two million electrons are removed from object A and placed on object B, the charge on object A decreases. Each electron has a charge of \(-1.6 \times 10^{(-19)\) C, so removing two million electrons from object A corresponds to a charge of \(-1.6 \times 10^{(-19)} C \times 2 \times 10^{(6)} = -3.2 \times 10^{(-13)} C\) being transferred to object B.
Therefore, the resulting charge on object A is \(-1.6 \times 10^{(-13){ C - (-3.2 \times 10^{(-13)} C) = -1.6 \times 10^{(-13)} C + 3.2 \times 10^{(-13)} C = 1.6 \times 10^{(-13){ C\). The resulting charge on object A is positive, indicating a deficit of electrons.
The resulting charge on object B is 0 C + \((-3.2 \times 10^{(-13)} C) = -3.2 \times 10^{(-13)\) C. The resulting charge on object B is negative, indicating an excess of electrons.
The resulting charge on object A is \(+1.6 \times 10^{(-13)\) C, and the resulting charge on object B is \(-3.2 \times 10^{(-13)\) C.
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During a lab investigation, students added four 50 g masses to two boxes and arranged the boxes so that they were motionless on a pulley, as shown in the diagram. The students then followed the procedure described in the box. The students recorded their observations after
each procedure and reset the pulley system to the original conditions.
During which procedures did students observe an unbalanced upward force on Box 1?
Group of answer choices
Procedures 4 and 5
Procedures 3 and 4
Procedures 1, 2, and 3
Procedures 1, 3, and 5
Answer:
Procedures 4 and 5.
Explanation:
Both would cause the box to move up.
4, it becomes lighter
5, the other becomes heavier, pulling it down, causing box one to go up
Since we seek the action of force to push up box 1, the students observes an unbalanced upward force on Box 1 in procedures 4 and procedure 5.
In what procedures did students observe an unbalanced upward force on Box 1?Generally, In procedure 4 we added another mass to the box two, therefore, causing box one to experience an upward force.
Therefore, students observe an unbalanced upward force on Box 1 in procedure 4.
Procedure 5 we remove masses from box 1 resulting in box 2 becoming heavier, pulling it down.
Therefore, students observe an unbalanced upward force on Box 1 in procedure 5.
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describe the differences between passive solar heating, active solar heating and photovoltaic energy
Passive solar heating, active solar heating, and photovoltaic energy are all different methods of harnessing the energy from the sun.
Passive solar heating is a method of using the design and orientation of a building to capture and retain solar energy without the use of mechanical or electrical devices. This can be achieved through the placement of windows, insulation, and thermal mass to absorb and store the sun's heat.
Active solar heating, on the other hand, uses mechanical and electrical devices to collect and distribute solar energy. This can be achieved through the use of solar collectors, pumps, and fans that circulate heated air or water through a building.
Photovoltaic energy, also known as solar power, converts sunlight directly into electricity through the use of photovoltaic cells. These cells are typically made from materials such as silicon and can be used to power homes, businesses, and even vehicles.
Overall, passive solar heating and active solar heating focus on using the sun's heat to warm buildings, while photovoltaic energy converts sunlight into electricity.
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a wooden loop and a wire loop, both with the same shape and size, are placed next to the north poles of identical magnets. then, the loops are moved closer to and farther from the magnets in exactly the same way. the emf generated around the wooden loop is
The emf (electromotive force) generated around the wooden loop will be zero.
When a loop of wire is moved near a magnet, the changing magnetic field induces an electric current in the loop, resulting in an emf according to Faraday's law of electromagnetic induction.
However, in the case of the wooden loop, as wood is not a conductor of electricity, it does not allow for the flow of electric current. Therefore, there will be no induced emf generated around the wooden loop, regardless of its proximity to the magnet or the movement.
On the other hand, the wire loop, being a conductor, will experience an induced emf when moved closer to or farther from the magnets in the same manner. The changing magnetic field induces an electric current in the wire loop, resulting in an emf according to Faraday's law.
In summary, the emf generated around the wooden loop is zero, while the wire loop will experience an induced emf due to its conductivity.
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Calculate the energy per photon (in J) associated with a frequency of 1260kHz Submit answer in scientific notation using the foat 0.00×10∧ 0(e.g.0.000123=1.23×10 ∧
−4). Omit units and spaces.
The energy per photon associated with a frequency of 1260 kHz is 2.10×10^-25 J.
To calculate the energy per photon, we can use the equation: E = hf, where E represents the energy, h is the Planck's constant (6.62607015 × 10^-34 J·s), and f is the frequency of the photon. Given that the frequency is 1260 kHz, we need to convert it to hertz (Hz) by multiplying it by 10^3:
Frequency = 1260 kHz × 10^3 = 1.26 × 10^6 Hz
Now, we can substitute the values into the equation:
E = (6.62607015 × 10^-34 J·s) × (1.26 × 10^6 Hz)
E = 8.33929859 × 10^-28 J
The answer is given in scientific notation as 8.34 × 10^-28 J. However, the question specifically asks for the answer in the format of 0.00×10^0. To achieve this, we can multiply the result by 10^3 and adjust the exponent accordingly:
E = (8.33929859 × 10^-28 J) × (10^3)
E = 8.33929859 × 10^-25 J
Thus, the energy per photon associated with a frequency of 1260 kHz is 2.10×10^-25 J.
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if d is the distance between plates, what is the magnitude of the acceleration of the proton in the region between the plates
The area of each plate is much more than the distance d between them. As a result, we can write d<<<A. Here, the first plate's charge density is +σ and the second plate's charge density is -σ.
Electric forces indicate forces acting at a distance between two charges when they are present between two plates. By dividing the topic into two discrete steps and applying the idea of an electric field, we may recast the query. First, imagine that one charge creates an electric field over space. Second, the electric field at the position of the introduced charge is what exerts force on a different charge that is brought into the initial charge's electric field.
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consider an ice skater spinning in place with both skates close together. at first she extends her arms out to both sides as she spins. later, she brings her arms in close to her body. which statement below is correct? group of answer choices the moment of inertia is larger when her arms are closer to her axis of rotation. the moment of inertia is larger when her arms are further from her axis of rotation. the moment of inertia of the skater is the same regardless of the position of her arms. more information is needed including knowing the actual mass of her arms. the moment of inertia is smaller when her arms are further from the axis of rotation.
The moment of inertia of an ice skater spinning in place is a measure of the skater's resistance to changes in her rotational motion.
The moment of inertia depends on distribution of skater's mass and the distance of that mass from the axis of rotation. When the skater extends her arms out to both sides, her moment of inertia increases because the mass is distributed farther from her axis of rotation. Conversely, when she brings her arms in close to her body, her moment of inertia decreases because the mass is distributed closer to her axis of rotation. Therefore, the correct statement is that the moment of inertia is larger when her arms are further from her axis of rotation.
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two objects of equal mass are a fixed distance apart. if you halve the mass of each object which of the following is most likely the new gravitational force between them? A half the original force B one fourth of the force C one fourth more than the original force D double the original force
Answer:
A) half the original force
Pls I need help
Boom pah pah
Light is reflected from a crystal of table salt with an index of refraction of 1.544. An analyser is placed to intercept the reflected ray, and is able to completely absorb the reflected light. What is the angle of incidence?
Answer:
hola me llamo bruno y tu?
Explanation:
pero yo soy de mexico
A kilogram is a unit of mass and when multiplied by meters per second
squared which are the units of acceleration, it yields a derived unit known as a
Answer:
it yields a derived unit known as Newton, which is the unit of Force.
Explanation:
The formula for force is given by Newton's Second Law, which states that whenever an unbalanced force is applied to a body, it produces an acceleration in the body in the direction of force.
\(F = ma\\\)
where, F = Force
m = mass
a = acceleration
Now, we substitute the respective S.I units of each quantity in equation:
F = Newton (N)
m = kilogram (kg)
a = acceleration = m/s²
Therefore,
\(N = (kg)(m/s^2)\)
So, it is clear from above expression that:
When kilogram is multiplied by meter per second squared, it yields a derived unit known as Newton, which is the unit of Force.
Help me with this please !!
Answer:the basic building block of chemistry
an atom
snell’s law gives the change in intensity of a beam of light when it travels from one medium to another. group of answer choices true false
The statement "Snell's law gives the change in intensity of a beam of light when it travels from one medium to another" will be evaluated to determine its truthfulness. Option A is correct answer.
Snell's law, also known as the law of refraction, relates the angles of incidence and refraction of a light beam as it passes from one medium to another. It states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities of light in the two media.
However, Snell's law does not directly give information about the change in intensity of the light beam. Intensity refers to the amount of power carried by the light per unit area and is related to the square of the amplitude of the electric field. The change in intensity of a light beam when it passes through different media is influenced by factors such as absorption, scattering, and reflection, which are not explicitly described by Snell's law.
Therefore, the statement "Snell's law gives the change in intensity of a beam of light when it travels from one medium to another" is false. Snell's law primarily relates the angles of incidence and refraction, providing information about the direction of the light beam but not directly addressing changes in intensity.
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The complete question is
Snell’s law gives the change in intensity of a beam of light when it travels from one medium to another. group of answer choices true false
A. The higher the index of refraction of a medium
B. The slower light moves within it.