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A cylinder of gas with a fixed piston is moved from a boiling water bath to an ice water bath. Consider the system is the gas as it comes to equilibrium with the new temperature bath.
1) Is the object is absorbing or giving off heat? Why?
2) Is the object's temperature increasing or decreasing? Why?
3) Is the object's internal energy increasing or decreasing? Why?
4) Is the object is doing mechanical work or having work done on it? Why?
5) Is the object's entropy increasing or decreasing? Why?
Angry Bird is launched horizontally with a slingshot with a speed of 1.87 m/s. If the initial height of the Angry Bird is 20.41 cm, how far away will the target need to be, in meters
Imagine you are on a cart that rests on a frictionless surface (you + car = 100 kg) with 30 basketballs (1 kg each). how fast in m/s are you going
A certain waffle iron is rated at 0.66 kW when connected to a 120-V source. What current does the waffle iron carry
The Mad Hatter moves a tea cup across the table by giving it a push. If it is initially at rest in front of him and comes to a stop across the table directly in front of Alice, find the total work done on the tea cup in the process
A typical jetliner lands at a speed of 148 mi/h and decelerates at the rate of (11.6 mi/h)/s. what is the total displacement of the jetliner
A parallel-plate capacitor is charged to 5000 V. A proton is fired into the center of the capacitor at a speed of2.4×105m/s. The proton is deflected while inside the capacitor, and the plates are long enough that the proton will hit one of them befor..
A bar AB of negligible mass and length 2 m balanced at its midpoint a 4 kg and 5 kg masses are suspended from both ends. A 4 kg mass is 0.4m away from the midpoint. At what point the mass of 5 kg is suspended to a bar keep the balance.
a 27 kg block is pulled across a horizontal surface by a rope. the block has an acceleration of 3.5 ms2 and the
An air-filled parallel-plate capacitor has plates of area 2.20 cm2 separated by 0.50 mm. What is the magnitude of the uniform electric field between the plates
A 258-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.980, and the log has ..
a circular coil of 16 turns and radius 10 cm carrying a current of 0.75 a rests with its plane normal to an external
Another way of looking at the fact that all objects have wave-like properties is diffraction. At what speed should the student be moving in order to have signficant diffraction as she enters the door
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