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(a) How much heat flows from 1.00 kg of water at 36.0°C when it is placed in contact with 1.00 kg of 22°C water in reaching equilibrium?
J
(b) What is the change in entropy due to this heat transfer?
J/K
(c) How much work is made unavailable, taking the lowest temperature to be 22°C?
A m1 = 14.50 kg object and a m2 = 10.00 kg object are suspended, joined by a cord that passes over a pulley with a radius of 10.00 cm and a mass of 3kg.
Suppose a car starts from rest and completes a straight line, 1/4 mile (402 meter) race in 12.3 seconds. Assume the acceleration to be constant.
What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up.
An electron with the initial speed of 4.00×10^5 is brought to rest by an electric field. What was the initial kinetic energy of electron, in electron volts.
Assume an astronaut in training sits in a seat at one end, facing the axis of rotation 29.0 ft away. Determine the rotation rate, in revolutions per second, required to give the astronaut a centripetal acceleration of 18.5g.
A 42 kg pole vaulter running at 11 m/s vaults over the bar. Her speed while she is above the bar is 0.7 m/s. Avoid air resistance, as well as any energy absorbed by pole, and determine her altitude as she crosses the bar.
A herd of wild horses races across the flat, open plains of the Great Basin in central Nevada. If the horses are running at 12.1 m/s at a compass heading of 286 degrees, illustrate what is the northward component of their velocity?
What is the greatest possible distance from the wall
A horse is capable of moving at four different speeds: walk (1.9 m/s), trot (5.0 m/s), canter (7.0 m/s), and gallop (12 m/s). An is learning how to ride a horse, what was her average velocity over the trip
Suppose a car is traveling at 13.0 m/s, and the driver sees a traffic light turn red. After 0.570 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as ..
A pendulum clock has an aluminum pendulum exactly 1.0m long when the clock is calibrated perfectly. The temperature increases by 9?C. By how much is it off at the end of one day
Electric field lines from a charged flat plate in air to the parallel flat plate with the opposite charge (a dc capacitor). Within this space, small (compared to the size of the plates) rectangles of non -conducting and conducting materials.
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