1.
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A 2 kg hammer strikes a 1.5 gram iron nail (c = 450 J/ kg . Co) as shown in the animation (position given in centimeters and time is in seconds). Assuming that all of the energy is absorbed by the nail, estimate the temperature rise of the nail. Start
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| 2.4x10-3 Co |
| 24 Co |
| 0 Co |
| 9x10-2 Co |
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2.
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A 1.5 kg brick falls a given height onto a 15 gram lead spike (c = 130 J/ kg . Co) as shown in the animation (position is in meters and time is in seconds). Assuming that all of the energy is absorbed by the nail, estimate the temperature rise of the nail. Start
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| 8 Co |
| 9 Co |
| 0 Co |
| 1.8x10-6 Co |
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3.
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A blue sportscar (m=2000 kg) hits a brick wall (c = 450 J/ kg . Co and M=4000 kg) as shown in the animation (position is in meters and time is in seconds). Determine the temperature change of the brick wall. Assume all of the energy lost goes into heating the wall. Start
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| 0.5mK |
| 8.9mK |
| 8.3mK |
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4.
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A mass is placed on a container (the dimension you cannot see has a length of 28 cm) filled with a gas as shown in the animation (pressure is given in atmospheres, position is in centimeters, and time is in seconds). What is the work done by the gas? Start
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| 181.5 J |
| -181.5 J |
| -1.8x108 J |
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5.
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A mass is pushed downward on top of a container (the dimension you cannot see has a length of 28 cm) filled with a gas that undergoes a temperature change as shown in the animation (pressure is given in atmospheres, position is in centimeters, and time is in seconds). What is the work done by the gas? Start
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| 90.8 J |
| -90.8 J |
| -9.1x107 J |
| -181.5 J |
| Cannot be determined |
|
6.
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A mass is pushed downward on top of a container (the dimension you cannot see has a length of 28 cm) filled with 0.3 moles of an ideal gas as shown in the animation (pressure is given in atmospheres, position is in centimeters, and time is in seconds). What is the work done by the gas? Start
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| 472 J |
| -472 J |
| 0 J |
| Cannot determine |
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7.
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A mass is placed on a container (the dimension you cannot see has a length of 28 cm) filled with a gas as shown in the animation (pressure is given in atmospheres, position is in centimeters, and time is in seconds). What is the heat gained or lost by the gas? Start
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| 181.5 J |
| -181.5 J |
| -1.8x108 J |
| Cannot be determined |
|
8.
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A mass is pushed downward on top of a container (the dimension you cannot see has a length of 28 cm) filled with 3 moles of an ideal monatomic gas that undergoes a temperature change as shown in the animation (pressure is given in atmospheres, position is in centimeters, and time is in seconds). What is the heat gained or lost by the gas? Start
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| -374 J |
| -328.8 J |
| Cannot be determined |
| -419.5 J |
|
9.
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80 moles of Oxygen molecules (in the simulation each circle represents a mole) are confined to a rigid box that is in contact with a heat resevior at its bottom surface. Determine the amount of heat gained or lost by the O2 molecules. Note: Simulation will run for 15 seconds. Start
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| 563 cal |
| 402 cal |
| 0 calo |
| -402 cal |
