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A freezer is used to freeze 3.0 Lof water completely into ice. The water and the freezer remain at aconstant temperature of T = 0°C.
(a) Determine the change in the entropy of thewater.
J/K
(b) Determine the change in the entropy of the freezer.
A simple 1.3m long pendulum oscillates at a location where g=9.81. How many complete oscillations does it make in 4.00min
The wire is cut at point P. Will the potential difference between points A and B increase, decrease, or remain the same? Give reason for.
The conducting rod shown in Fig. 30-50 has length L and is being pulled along horizontal, frictionless, conducting rails at a constant velocity. At what rate does this force do work on the rod
A kid fires water horizontally from a squirt gun held 1.6 above the ground. It hits other kid 2.4 away squares in the back, at a point 0.85 above the ground. What was the initial speed of the water.
A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +60 N·m is applied to the wheel for 18 s, Find the moment of inertia of the wheel.
You throw a glob of putty straight up toward the ceiling, which is 3.00m above the point where the putty leaves your hand. What is the speed of the putty just before it strikes the ceiling
A string on a violin is stretched between two points 20.0 cm apart with a tension of 120 N. The total length of the string is 31 cm and it has a mass of 0.62 grams. The frequency of the third harmonic is?
You look through a Polaroid sheet at a 60 W light bulb 3.00 m away. Find the intensity of the light you see
The length of a simple pendulum is 0.79 m, and the mass of the bob at the end of the cord is 0.24 kg. What is the angular frequency of the motion
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 7130 m/s, what is the magnitude of the average current in this region
A 1.5-H inductor is connected in series with a 200-? resistor through a 15-V dc power supply and a switch. what is the maximum energy stored in the inductor
A block of mass 1.00kg slides along a horizontal table with speed V0 = 2.50m/s. How far did the spring compress when the block first momentary comes to rest
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