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TCTIOUN Fan Block A student in a physics lab has a block with a fan attached...
During a physics experiment, a fan is used to apply a push to a cart on...
During a physics experiment, a fan is used to apply a push to a cart on a horizontal track. A student would like the net force on the cart to be 12 N to the right. The student knows that the friction force on the cart by the track will be 3 N to the left. The fan should exert a force of a. 15 N to the right b. 15 N to the left c. 9 N to the...
A physics student pulls a block of mass m = 22 kg up an incline at...
A physics student pulls a block of mass m = 22 kg up an incline
at a slow constant velocity for a distance of d = 4.5 m. The
incline makes an angle ? = 32° with the horizontal. The coefficient
of kinetic friction between the block and the inclined plane is µk
= 0.3.
1) What is the work Wm done by the student?
2) At the top of the incline, the string by which she was pulling
the...
2016 P PHYSICS 1 FREE-RESPONSE QUESTIONS 2. (12 points, suggested time 25 minutes) new kind of toy ball is advertised to "bounce perfectly elastically" off hard surfaces. A student suspec...
2016 P PHYSICS 1 FREE-RESPONSE QUESTIONS 2. (12 points, suggested time 25 minutes) new kind of toy ball is advertised to "bounce perfectly elastically" off hard surfaces. A student suspects, however, that no collision can be perfectly elastic. The student hypothesizes that the collisions are very close to being perfectly elastic for low-speed collisions but that they deviate more and more from being perfectly elastic as the collision speed increases. (a) Design an experiment to test the student's hypothesis about...
A student must determine how the mass of a block affects the period of oscillation when the block is attached to a vertical spring. The value of the spring constant is known. The student writes the following experimental procedure. Use an electronic bala
A student must determine how the mass of a block affects the period of oscillation when the block is attached to a vertical spring. The value of the spring constant is known. The student writes the following experimental procedure.Use an electronic balance to measure the mass of the block.Attach the block to the vertical spring.Displace the block from the system’s equilibrium position to a new vertical position.Release the block from rest.Use a meterstick to measure the vertical displacement of the...
A block of mass m_1 = 1.5 kg is placed on a horizontal surface. Attached to...
A block of mass m_1 = 1.5 kg is placed on a horizontal surface. Attached to the block is a string which passes over a pulley and suspends a mass m_2 = 3.5 kg as shown in the diagram below. If the system accelerates at a = 5.2 m/s^2, what is the coefficient of kinetic friction mu_k between the horizontal surface and m_1?
12. (12 Points) A student is interested in high-performance racing. The student, while learning about high-performance...
12. (12 Points) A student is interested in high-performance racing. The student, while learning about high-performance racing comes across a research document that claims that rubber materiais experience a kinetic friction with concrete such that the frictional force is directly proportional to sliding speed. (a) Would this claim be valid for materials such as wood, glass, and metal? If so, why? If not, why not? The student wishes to experimentally test this claim. The student obtains a piece of tre...
A student must determine how the mass of a block affects the period of oscillation when...
A student must determine how the mass of a block affects the
period of oscillation when the block is attached to a vertical
spring. The value of the spring constant is known. The student
writes the following experimental procedure.
1. Use an electronic balance to measure the mass of the
block.
2. Attach the block to the vertical spring.
3. Displace the block from the system’s equilibrium position to a
new vertical position.
4. Release the block from rest.
5....
This is a physics question about applying Newton's Laws. So the question involves a pulley system...
This is a physics question about applying Newton's Laws. So the question involves a pulley system in which two blocks are connected by a string. One block is on a horizontal flat plane with a mass of 7.8kg. The block and horizontal surface has a coefficient of kinetic friction of .87. The second block is on an incline that has a 35 degree angle the block that is on this incline has a mass of 4.8 kg. This incline is...
Kinetic and internal energy Mech 17 III. Application to Friction A. A block is initially moving...
Kinetic and internal energy Mech 17 III. Application to Friction A. A block is initially moving on a level table. Later, it is observed that the block has slowed down due to friction. Time f Block slows down while moving on a level table In answering the following questions, consider the system consisting of only the block. 1. Complete the energy bar diagram at right. Explain your Block reasoning, including any assumptions you are making Did the block gain internal...
Make sure that the following questions are answered in your submitted lab report. A student has...
Make sure that the following questions are answered in your submitted lab report. A student has an unknown liquid the theoretical density of which is 1.34 g/mL. He determines the experimental density of the liquid using the method described in the procedure for this experiment Tell whether each of the following errors would cause the experimental value of the density of the liquid to be too large, too small, or unchanged relative to the true value. Explain your reasoning in...
A physics student pulls a block of mass m = 22 kg up an incline
at a slow constant velocity for a distance of d = 4.5 m. The
incline makes an angle ? = 32° with the horizontal. The coefficient
of kinetic friction between the block and the inclined plane is µk
= 0.3.
1) What is the work Wm done by the student?
2) At the top of the incline, the string by which she was pulling
the...
2016 P PHYSICS 1 FREE-RESPONSE QUESTIONS 2. (12 points, suggested time 25 minutes) new kind of toy ball is advertised to "bounce perfectly elastically" off hard surfaces. A student suspects, however, that no collision can be perfectly elastic. The student hypothesizes that the collisions are very close to being perfectly elastic for low-speed collisions but that they deviate more and more from being perfectly elastic as the collision speed increases. (a) Design an experiment to test the student's hypothesis about...
A block of mass m_1 = 1.5 kg is placed on a horizontal surface. Attached to the block is a string which passes over a pulley and suspends a mass m_2 = 3.5 kg as shown in the diagram below. If the system accelerates at a = 5.2 m/s^2, what is the coefficient of kinetic friction mu_k between the horizontal surface and m_1?
12. (12 Points) A student is interested in high-performance racing. The student, while learning about high-performance racing comes across a research document that claims that rubber materiais experience a kinetic friction with concrete such that the frictional force is directly proportional to sliding speed. (a) Would this claim be valid for materials such as wood, glass, and metal? If so, why? If not, why not? The student wishes to experimentally test this claim. The student obtains a piece of tre...
A student must determine how the mass of a block affects the
period of oscillation when the block is attached to a vertical
spring. The value of the spring constant is known. The student
writes the following experimental procedure.
1. Use an electronic balance to measure the mass of the
block.
2. Attach the block to the vertical spring.
3. Displace the block from the system’s equilibrium position to a
new vertical position.
4. Release the block from rest.
5....
Kinetic and internal energy Mech 17 III. Application to Friction A. A block is initially moving on a level table. Later, it is observed that the block has slowed down due to friction. Time f Block slows down while moving on a level table In answering the following questions, consider the system consisting of only the block. 1. Complete the energy bar diagram at right. Explain your Block reasoning, including any assumptions you are making Did the block gain internal...
Make sure that the following questions are answered in your submitted lab report. A student has an unknown liquid the theoretical density of which is 1.34 g/mL. He determines the experimental density of the liquid using the method described in the procedure for this experiment Tell whether each of the following errors would cause the experimental value of the density of the liquid to be too large, too small, or unchanged relative to the true value. Explain your reasoning in...
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