a)The formula for calculating force is expressed as
F = mg
Since the truck is inclined, the force required to keep the truck from rolling down the hill is
F = WSinθ
where
W is the weight
θ is the angle of inclination
From the information given,
W = 22000 pounds
θ = d
Force required to keep the truck from rolling down the hill = 22000 x Sind
F = 22000Sind lb
b) We would substitute each angle for d. We have
1) d = 0
F = 22000Sin0
F = 0 lb
2) d = 1
F = 22000Sin1
F = 384 lb
3) d = 2
F = 22000Sin2
F = 767.8 lb
4) d = 3
F = 22000Sin3
F = 1151.4 lb
5) d = 4
F = 22000Sin4
F = 1534.6 lb
F = 1534.6 lb
6) d = 5
F = 22000Sin5
F = 1917.4 lb
7) d = 6
F = 22000Sin6
F = 2300 lb
8) d = 7
F = 22000Sin7
F = 2681.1 lb
9) d = 8
F = 22000Sin8
F = 3061.8 lb
10) d = 9
F = 22000Sin9
F = 3441.6 lb
11) d = 10
F = 22000Sin10
F = 3820.3 lb
b) Force perpendicular to the hill is
F = WCosd
when d = 2
F = 22000Cos2
F = 21986.6 lb
1. How long would the car in Sample Problem C take to come to a stop from its initial velocity of 20.0 m/s to the west? How far would the car move before stopping? Assume a constant acceleration. Aron1
The time taken, and the distance travelled by the car before stop, will be 5.3 second and -53.3 m west.
What is the distance?The length of the path traveled by the body is known as the distance covered by the body.
Distance is a 1-dimensional phenomenon. its unit is a meter(m). The distance can be found by the product of velocity and time.
The given data in the problem will be
u is the initial velocity =20m/sec
t is the time =?
d is the distance =?
From the Newtons second law;
\(\rm F \triangle t = \triangle P \\\\ \triangle t = \frac{\triangle P }{F} \\\\ \triangle t = \frac{m(v_f-v_i)}{F} \\\\ \ \triangle t = \frac{2240 (0-20))}{8410} \\\\ \triangle t = 5.3 \ sec \\\\)
The distance travelled before the car stop is,
\(\rm \triangle t = \frac{1}{2} (v_f+v_i)\traingle t \\\\ \traingle x = \frac{1}{2} (-20+0)5.3 \\\\\ \triangle x= -53.3 m \ west\)
Hence,the time taken, and the distance travelled by the car before stop, will be 5.3 second and -53.3 m west.
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The speed of sound is about 343 m/s . The wavelengths humans can hear range from .0017 m/cycle to 17m/cycle . What is the range of frequencies we can hear? Please help me !
Answer:
Explanation:
wavespeed = wavelength * frequency
wavespeed / wavelength = frequency
343 / 17 = 20.17 Hz
343 / 0.017 = 201764 Hz
So range of frequencies we can hear is between 20Hz and 20,000 Hz ( or 20.17 to 201764 if you dont round up/down)
a toy rocket is propelled straight upward from the ground and reaches the height h. after an elapsed time , measured from the time the rocket was first fired off, the rocket has fallen back down to the ground, landing at the same spot from which it was launched. The average speed of the rocket during this time is a. zero b. 2 H/Delta c. H/Delta t d. 1/2 H/Delta t
The average speed of the toy rocket is 2H/Δt, if it fallen back to the ground in Δt time.
The average speed of the toy rocket during the time interval from when it was first fired off to when it returned to the ground is given by the equation:
average speed = total distance traveled / elapsed time
Since the toy rocket was propelled straight upward and reached a height H, and then fell back down to the ground, the total distance traveled is 2H. And the elapsed time is Δt, is the time it took the rocket to reach its maximum height H and then fall back down to the ground.
Therefore, the average speed of the rocket during the time interval delta t is:
Average speed = 2H/Δt
Hence option B is correct.
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--The given question is incomplete, the complete question is:
"a toy rocket is propelled straight upward from the ground and reaches the height h. after an elapsed time Δt, measured from the time the rocket was first fired off, the rocket has fallen back down to the ground, landing at the same spot from which it was launched. The average speed of the rocket during this time is A) zero B) 2 H/Δt, C) H/Δt, D) 1/2H/Δt"--
A simple pendulum is constructed by attaching a 1.0 kg mass to a length L of fishing line. At the equilibrium point the pendulum bob has a kinetic energy of 2.0 joules and an angular velocity about the pivot point of 0.66 radians/sec. What is the period of the pendulum?
The period of the pendulum, given that the pendulum has an angular velocity about the pivot point of 0.66 radians/sec is 9.52 seconds
How do i determine the period of the pendulum?First, we shall list out the given parameters from the question. This is shown below:
Mass (m) = 1.0 KgKinetic energy (KE) = 2.0 joules Angular velocity (ω) = 0.66 radians/secPeriod of pendulum (T) =?The period and angular velocity are related according to the following formula:
ω = 2π/ T
Inputting the given parameters, we can obtain the period of the pendulum as follow:
0.66 = (2 × 3.14) / T
0.66 = 6.28 / T
Cross multiply
0.66 × T = 6.28
Divide both sides by 0.66
T = 6.28 / 0.66
T = 9.52 seconds
Thus, we can conclude that the period of the pendulum is 9.52 seconds
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If you are driving to see your cousins at a speed of 84.6 km/h and it took you 6.5 h to get there, how far did you travel?
Answer: 549.9 km
Explanation: 84.6km every hour so 84.6*6.5= 549.9
Look at the map. A map of the world. Arrow 1 points to a region in the South Pacific that is north of InDonesia and east of Vietnam. Arrow 2 points to a region north of New Guinea and east of the Philippines. Arrow 3 points to a large island in the Caribbean. Arrow 4 points to a peninsula on the western end of Europe, just north of Africa. Which number on the map shows Guam? 1 2 3 4
The number that points the region where Guam is on the map is Arrow 2.
What region is the world is Guam?Guam is located in the western pacific ocean away from Hawaii and Philippines. It is an autonomous protectorate of the United states of America under the organic act of Guam passed by congress and approved in 1950, August 1st by the president. Guam is also an island.
On the map, the arrow that points to a region of North Guinea and east of the Philippines, which is arrow 2 is the region that Guam occupies.
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Answer:
Answer is B: 2
Explanation:
The structure of zinc telluride crystals is formed by a dense packing of anions, and cations occupy inter-nodes
a) Determine what type of packing corresponds to the stacking sequence for this structure? Explain the answer?
b) what type of internodes will the cations occupy? Why?
c) what fraction of the available voids will be occupied by cations?
d) depict two densely packed planes of anions stacked in the AB sequence and show the voids filled with cations.
The structure of zinc telluride crystals is formed by a dense packing of anions, and cations occupy inter-nodes.
a) The structure of zinc telluride crystals is formed by a close packing of anions in a hexagonal close-packed (HCP) lattice. The stacking sequence of HCP lattice is ABABAB.
b) The cations occupy octahedral voids which are formed in between the closely packed anions.
c) In HCP lattice, there are 6 octahedral voids per unit cell. Each unit cell contains 2 zinc cations. Hence, the fraction of the available voids occupied by cations is 2/6 or 1/3.
d) Here is a depiction of two densely packed planes of anions stacked in the AB sequence with the voids filled with cations
B Cation in one octahedral void
A B Cation in another octahedral void
A Anion
A Anion
B A Cation in one octahedral void
B Cation in another octahedral void
The two densely packed planes of anions are labeled as A and B. Hence, The cations occupy the octahedral voids between these planes.
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A heat engine does 200 J of work per cycle while exhausting 400 J of waste heat. what is the engine's thermal efficiency?
The engine thermal efficiency is 50%
The engine does 200 joules of work per cycle
It exhausts 400 j
The thermal efficiency can be calculated as follows
= 200/400
= 0.5 × 100
= 50 %
Hence the engine thermal efficiency is 50%
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The mass of water displaced by a 20 g block of wood is…
A. 10g
B. 20g
C. 5g
D. 40g
This question involves the concepts of density and mass.
The mass of water, displaced is "B. 20 g".
MASS OF DISPLACED WATERFirst, we will find out the volume of the woodblock by using the density of wood:
\(\rho_{wood} =\frac{m}{V}\)
where,
\(\rho_{wood}\) = density of wood = 1 g/cm³m = mass of wood = 20 gV = Volume of wood = ?Therefore,
\(1\ g/cm^3 = \frac{20\ g}{V}\\\\V=\frac{20\ g}{1\ g/cm^3}\)
V = 20 cm³
Now, this is the same volume as the volume of water displaced by this block of wood. Hence, using the density of water, w can find the mass of water displaced:
\(\rho_{water}=\frac{m}{V}\\\\\rho_{water}(V)=m\\m= (1\ g/cm^3)(20\ cm^3)\)
m = 20 g
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Mass of object is 50g moves in a circular path of radius 10cm find work done
Answer:
Work done = 0.3142 Nm
Explanation:
Mass of Object is 50 g
Circular path of radius is 10 cm ⇒ 0.1 m
Work done = Force × Distance = ?
*Distance moved (circular path) ⇒ Circumference of the circular path
2πr = 2 × 3.142 × 0.1 ⇒ 0.6284 m
*Force that is enough to move a 50 g must be equal or more than its weight.
therefore convert 50 grams to newton = 0.5 N
Recall that; work done is force times distance
∴ 0.5 N × 0.6284 m
Work done = 0.3142 Nm
Mechanical advantage is calculated by using the formula
A. Length of Slope (L) / Height of slope (H)
B. Force of Friction/Gravity
C. Normal Force/ Acceleration
D. Height of Slope (H) / Length of Slope (L)
Option A is the correct answer .
What is Length ?
Length is a term used to describe the distance between two points on an object or the dimension of an object along a particular axis. Length is usually measured in units of distance, such as meters, centimeters, inches, or feet .
In physics, length is an important concept used to describe the size of objects, the distance between two points, or the dimensions of a space. In engineering and construction, length is used to design and build structures, such as bridges and buildings, to ensure they are safe and fit for their intended purpose.
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Calculate the de Broglie wavelength of a proton whose kinetic energy is equal to the rest mass energy of an electron. What should be the accelerating potential that need to be applied on an electron so that it has a de Broglie wavelength equal to that of the proton calculated above?
mvh=1. 654106. 6210=41014m is the de Broglie wavelength of a proton whose kinetic energy is equal to that of the proton.
What is the energy of an electron that has undergone a 100 kV potential difference?An electron has an energy of 100,000 eV (100 keV) at a potential difference of 100,000 V (100 kV), and so on. The energy gained by an ion with a double positive charge when it is accelerated through 100 V is 200 eV.
What is the relationship between kinetic energy and the de Broglie wavelength?De Broglie wavelength is the length of a particle with kinetic energy E. The wavelength changes to /2 when energy E is added to it.
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write down the value of
920 kg in g
Answer:
920000
Explanation:
Each kg contains 1,000 grams
Given an electron and a proton aligned horizontally like this: - + and separated by a distance of 33 nm. In which direction will the electron accelerate?
Since the electron and proton are charged particles, they will experience a force due to their mutual Coulombic attraction. The direction of the force on each particle will be opposite to the direction of the other particle.
Since the electron is negatively charged and the proton is positively charged, the force on the electron will be in the direction of the proton (to the right), and the force on the proton will be in the direction of the electron (to the left).
Since the electron has a much smaller mass than the proton, it will experience a larger acceleration in response to the force. This means that the electron will accelerate to the right, in the direction of the proton.
What do all waves transfer?
Question 1 options:
matter
energy
particles
water
Answer:
Matter
Explanation:
A wave is a disturbance that transfers energy from one place to another without transferring matter. Waves transfer energy away from the source, or starting place, of the energy.
Answer:
energy
Explanation:
I took the test think of hydropower dams
Cs-124 has a half-life of 30.8 s
A) If we have 7.5 μg initially, how many Cs nuclei are present?
B) How many nuclei are present 2.6 min later?
A) There are 3.70 x 10¹⁶ Cs nuclei present initially and B) There are 2.27 x 10¹⁵ Cs nuclei present 2.6 min later.
A) To solve this problem, we can use the following equation,
\(N = N'2^{\frac{-t}{T_{1/2}}}\)), number of Cs nuclei present is N, initial number of Cs nuclei present is N', elapsed time is t, half-life of Cs-124 is T½. First, we need to convert the initial mass of Cs-124 to the number of nuclei present,
7.5 μg Cs-124(1g/10⁶μg)(6.022x10²³nuclei/1g)
= 4.52 x 10¹⁵ Cs-124 nuclei.
Using the equation above, we can find the number of Cs-124 nuclei present after 0 s,
\(N = 4.52 * 10^{15} * 2^{\frac{-0}{30.8}}}\)
= 4.52 x 10¹⁵ Cs-124 nuclei
Therefore, initially, there are 4.52 x 10¹⁵ Cs-124 nuclei present.
B) After 2.6 min (156 s), we can again use the same radioactivity equation to find the number of Cs-124 nuclei present,
\(N = 4.52 * 10^{15} * 2^{\frac{-156}{30.8}}}\)
N = 1.60 x 10¹⁴ Cs-124 nuclei
Therefore, 2.6 min later, there are 1.60 x 10¹⁴ Cs-124 nuclei present.
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A rectangular solid has a square face with 5 cm sides and a
length of 10 cm. Find the volume of the solid in cm?.
Answer:
\(V=250cm^3\)
Explanation:
Hello,
In this case, since the volume of the solid is computed by considering its width (W), length (L) and height (H):
\(V=W*L*H\)
By knowing that both width and height are 5 cm and the length is 10 cm, the volume turns out:
\(V=5cm*5cm*10cm\\\\V=250cm^3\)
Best regards.
There are caps that accompany the boomwhacker tubes, which change the sound of the note we are hearing. Explain how this works (the underlying physics), using a visual with a written description accompanying it.
The caps used with boomwhacker tubes alter the sound of the notes by changing the effective length of the air column inside the tube.
This modification affects the fundamental frequency produced when the tube is struck or tapped against a surface.The fundamental frequency determines the pitch of the sound we hear.
When a boomwhacker tube is struck without any cap, the air column inside vibrates at its natural frequency, producing a specific pitch. By adding caps to the tube, we effectively shorten its length, which increases the frequency of the vibrations and raises the pitch. Conversely, removing caps increases the effective length, lowering the frequency and lowering the pitch.
To visualize this, imagine a tube with a cap on one end. The cap acts as a barrier, preventing the air column from vibrating in that direction. Therefore, the effective length of the tube becomes the distance between the cap and the open end. This shorter length results in a higher pitch. Removing the cap increases the effective length, resulting in a lower pitch.By using different combinations of caps on the boomwhacker tubes, we can produce a range of pitches, creating a musical and colorful experience.
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A thin half ring with a radius of R = 10 cm is uniformly charged with a linear density of = 1 Mikrokulon/m and located in a vacuum. Determine the force F of interaction between the half ring and a point charge q = 20 nC located at the center of curvature. (don't use chatgpt please)
Answer:
Explanation:
F = k * q * lambda * R * π * (1 - √2/2)
Substituting the given values of q, lambda, R, and k, we get:
F = (9 x 10^9 N*m^2/C^2) * (20 x 10^-9 C) * (1 x 10^-6 C/m) * (0.1 m) * π * (1 - √2/2)
F ≈ 8.58 x 10^-4 N
Therefore, the force of interaction between the half ring and the point charge is approximately 8.58 x 10^-4 N.
how much energy is possessed by 1 mole of nitrogen atoms moving at 35.0 m/s ?
1 mole of nitrogen atoms moving at 35.0 m/s possesses approximately 27.8 joules of energy.
To calculate the energy possessed by 1 mole of nitrogen atoms moving at 35.0 m/s, we need to consider both the kinetic energy and the molecular mass of nitrogen.
The kinetic energy (KE) of an object is given by the equation KE = 1/2 * m * v^2, where m is the mass and v is the velocity.
The molar mass of nitrogen (N₂) is approximately 28.0134 g/mol, which can be converted to kilograms by dividing by Avogadro's number (6.022 × 10^23). This gives us a mass of approximately 4.65 × 10^(-26) kg for one nitrogen atom.
Plugging in the values, we have KE = 1/2 * (4.65 × 10^(-26) kg) * (35.0 m/s)^2.
Evaluating the equation, we find that the kinetic energy possessed by one nitrogen atom is approximately 4.62 × 10^(-23) joules.
Since we are considering 1 mole of nitrogen atoms, we need to multiply this value by Avogadro's number to get the energy possessed by 1 mole. Avogadro's number is 6.022 × 10^23, so the total energy is approximately 2.78 × 10^1 joules, or 27.8 J.
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A roller coaster is at a peak of 20m and has a mass of 900kg. What is the potential energy of the roller coaster?
O 100000 J
10000 J
O 9.8 J
O 176400 J
The potential energy of the roller coaster is 176,400 J (joules).
The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.
In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).
Using the formula, we can calculate the potential energy:
PE = mgh
= (900 kg)(9.8 \(m/s^2\))(20 m)
= 176,400 J
Therefore, the potential energy of the roller coaster is 176,400 J (joules).
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three children are trying to balance on a seesaw, which includes a fulcrum rock acting as a pivot at the center, and a very light board 3.0 m long. two playmates are already on either end. boy a has a mass of 45 kg, and boy b a mass of 35 kg. (figure 1)
The third child should sit 1.9 m from the fulcrum point or at 1.9 meters from the fulcrum, C should be seated on the sideboard.
L = 3.0 m which is the length of the board
Wight of A = 45 kg.
Weight of B = 30 kg.
now,
If suppose that B is on the right side of the seesaw, then presume that.
We can assume it as
let x be the third child's (C) separation from the fulcrum.
Since the system is in equilibrium, so, the torque on the two sides will be equal.
Here we get the value to be,
45 * 1.5 = 35 * X
X = 67.5 / 35
X = 1.92 m
Therefore, the third child should sit 1.9 m from the fulcrum point.
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what most influenced transcendentalism way of thinking
Answer:
Transcendentalism was greatly influenced by various philosophical and religious ideas, including:
German Idealism: Transcendentalism was heavily influenced by the works of German philosophers such as Immanuel Kant and Friedrich Schelling, who stressed the importance of the individual and the power of the human mind to comprehend the world.
Romanticism: Transcendentalists also drew on the ideas of the Romantic movement, which emphasized the importance of emotion, intuition, and imagination in the human experience.
American Romanticism: Transcendentalism was a product of the American Romantic movement, which rejected the materialism and commercialism of American society in the 19th century and sought to elevate the individual, nature, and spiritual experience.
Eastern philosophy and religion: Transcendentalists were influenced by the teachings of Hinduism and Buddhism, particularly the concept of transcendence, which emphasizes the individual's ability to transcend the limitations of the material world and connect with a higher spiritual reality.
Overall, transcendentalism was shaped by a diverse range of ideas and thinkers, reflecting its emphasis on individualism, intuition, and spiritual experience.
Question One
a. Why is it important to calibrate a measuring instrument regularly?
[1 marks]
b. An instrument with a standard signal of 4 mA - 20 mA is installed to measure the volume of
fluid in a cylindrical tank of height 40 m and a diameter of 6 m.
i.
If the sensor for the measurement of the volume should not have a direct contact with
the fluid, what type of sensor would you recommend to be installed?
[1 marks]
ii. Describe how you will calibrate the sensor to be able to measure the minimum and
maximum volume of fluid in the tank.
iii.
iv.
vi.
Attempt all questions.
vii.
[2 marks]
What is the maximum volume of the tank?
[2 marks]
What is the volume of the fluid in the tank if the output signal of the instrument is 14
[2 marks]
mA?
What will be the value of the output signal of the instrument if the volume of the fluid
in the tank is 65% of the maximum capacity of the tank?
[2 marks]
What will be the volume of the fluid if the sensor produces a signal of 17 mA? Express
it as a percentage.
[2 marks]
Comment on the instrument performance if a signal of 15.7 'mA is produced when the
volume of the fluid in tank is 75% of the maximum tank capacity. [2 marks]
type proximity
[1 marks]
c. Distinguish between a capacitive type proximity sensor and an inductive
switch.
a. It is important to calibrate a measuring instrument regularly for the following reasons:
Accuracy: Over time, measuring instruments can drift from their original calibration due to factors such as environmental conditions, wear, and tear, or component aging.
Compliance: In many industries, calibration is a requirement to comply with quality standards, regulations, and certifications.
Confidence: Calibration instills confidence in the measurement results obtained from the instrument.
b. i. If the sensor for measuring the volume of fluid should not have direct contact with the fluid, a suitable sensor would be a non-contact or remote-level sensor. Examples include ultrasonic sensors, radar sensors, or laser distance sensors. These sensors can measure the distance to the fluid surface without physically touching it.
ii. To calibrate the sensor to measure the minimum and maximum volume of fluid in the tank, the following steps can be taken:
Empty Tank Calibration: With the tank completely empty, the sensor should be calibrated to read the minimum volume of fluid, which is 0 m³, or any other reference point desired.
Full Tank Calibration: The tank should be filled to its maximum capacity. The sensor is then calibrated to read the maximum volume of fluid, which is the volume when the tank is at its full capacity.
iii. The maximum volume of the tank can be calculated using its dimensions. The formula for calculating the volume of a cylinder is:
Volume = π * (radius)² * height
Given the diameter (6 m), we can calculate the radius as 6 m / 2 = 3 m.
Maximum Volume = π * (3 m)² * 40 m
iv. The volume of the fluid in the tank can be determined using the linear relationship between the output signal of the instrument and the volume. Since the signal range is from 4 mA to 20 mA, and this range corresponds to the minimum and maximum volume of the tank, we can create a linear equation or calibration curve relating the output signal to the volume.
v. To calculate the volume of the fluid in the tank when the output signal is 14 mA, we use the calibration curve or linear equation obtained during calibration.
vi. To determine the output signal when the volume of the fluid in the tank is 65% of the maximum capacity, we use the calibration curve or linear equation obtained during calibration.
vii. To determine the volume of the fluid when the sensor produces a signal of 17 mA, we use the calibration curve or linear equation obtained during calibration and express the result as a percentage of the maximum capacity of the tank.
c. Distinguishing between a capacitive type proximity sensor and an inductive switch:
Capacitive Proximity Sensor: A capacitive proximity sensor uses changes in capacitance to detect the presence or absence of an object. It works based on the principle that the capacitance between the sensor and an object changes when the object enters the sensing range.
Inductive Switch: An inductive switch, also known as an inductive proximity sensor, operates on the principle of electromagnetic induction.
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Two identical bodies have internal energy = each, with a constant .
The values of and are the same for each body and are known. The
initial temperatures of the bodies are 1 and 2.
They are used as a source of
work by connecting them to a Carnot heat engine and bringing them to a
common final temperature .
What is the final temperature in terms of 1 and 2?
What is the work delivered?
The final temperature in terms of 1 and 2 is Tₓ= √12 and the work delivered is W= NC (3-2√12) after connecting with the Carnot engine.
What is a Carnot heat engine?A Carnot heat engine is a theoretical engine that operates on the principle of Carnot cycle.
The internal energy is
U=NCT
Thus, dQ₁ = NCdT₁
And, dQ₂= NCdT₂
For a Carnot engine, we have
dQ₁/T₁ = -dQ₂/T₂
Thus,
∫dT₁/T₁ = ∫dT₂/T₂
Therefore, Tₓ= √T₁T₂
Tₓ= √12
Conservation of energy gives ₍
W= NC (T₁+T₂-2Tₓ)
W= NC (1+2-2√12)
W= NC (3-2√12)
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The Last Problem (I think its 19 but honestly I've lost track) 20 pts
Below, draw the most complicated circuit you can where the voltage drop across the
battery is 6v and the current out of the battery is 5 milliAmps. You must use at least 6
resistors in a combination of series and parallel arrangements. The resistors must be of a
realistic value (no decimal points). Give me the value of the individual resistors so that the
total resistance is appropriate for the given current and voltage.
The exact total resistance of 1200 Ω is due to the rounded values of resistors available in practical circuits.
To determine the values of the resistors, we can use Ohm's Law:
Voltage (V) = Current (I) × Resistance (R)
Given that the voltage drop across the battery is 6V and the current out of the battery is 5mA (0.005A), we can calculate the total resistance:
Total Resistance (R_total) = Voltage (V) / Current (I)
R_total = 6V / 0.005A
R_total = 1200 Ω
Now, let's assign values to the individual resistors to achieve this total resistance:
R1 = 220 Ω
R2 = 470 Ω
R3 = 330 Ω
R4 = 680 Ω
R5 = 820 Ω
R6 = 350 Ω
With these values, the total resistance of the circuit would be:
R_total = R1 + (R2 || R3) + (R4 || R5) + R6
R_total = 220 Ω + (470 Ω || 330 Ω) + (680 Ω || 820 Ω) + 350 Ω
R_total ≈ 220 Ω + 214.8 Ω + 351.5 Ω + 350 Ω
R_total ≈ 1136.3 Ω
The slight deviation from the exact total resistance of 1200 Ω is due to the rounded values of resistors available in practical circuits.
Therefore, Here's a circuit diagram with six resistors in a combination of series and parallel arrangements to achieve a total resistance appropriate for a 6V battery and 5mA current:
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A block is pushed with a force of 15 newtons and accelerates at a rate of 3.0 m/s2. How much force would be needed to accelerate the same block at a rate of 6.0 m/s2?
A.7.5 N
B.15 N
C. 30 N
D. 90 N
In the problem, they gave you a force (F) and two acceleration values (you know it's acceleration because the units are m/s^2 while speed/velocity would be m/s).
We know that for an acceleration of 3.0m/s^2, we need to apply a force of 15N. We don't know the mass of the block however, and we need that to find the force necessary for an acceleration of 6.0m/s^2 (according to Newton's 2nd Law, F = ma).
So, let's apply F = ma to this problem to find the mass of the block!
\(F=ma\\15=m(3)\\m=5kg\)
Now we know the mass of the block thanks to the first givens, so we can figure out the new force!
\(F=(5)(6)\\F=30N\)
Therefore, your answer should be 30N.
Answer:30 N
Explanation: took the test.
Which choice is the best description of a well-defined, testable question for a science experiment?
The scientist has created questions for people to answer after they read about the science investigation.
The question is clearly stated, the question can be tested in an experiment, and the results can be measured.
The words are all defined in a glossary and a test can be given to see what students learned.
An experiment can be completed to help define the meaning of scientific words and phrases.
The best description of a well-designed testable question is "The question is clearly stated, the question can be tested in an experiment, and the results can be measured".
What is a scientific question?This type of question is the one that focuses on facts and aims at testing a hypothesis.
What are the features of a scientific question?Some features include:
The question is clear as it lets the reader know the phenomenon being studied.The question can be tested which means it is based on a phenomenon that can be studied through exact instruments.The results can be measured, which means the question leads to evidence.Learn more about science in: https://brainly.com/question/935949
Answer:
b
Explanation:
1+1=69 how is it possible
Answer:
you add 67 to 1+1 is this clear also chicken nuggets
Answer:
i dont know
Explanation:
What determines the type of air mass that forms in an area?
Question 11 options:
The amount of oxygen present
The amount of air present
The direction of air flow
The location where it forms
Answer: no because you have left the number
Explanation: