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1 mole of Cu at temp. 0 Celsius is placed in thermal contact with a second mole of Cu (at 100 Celsius). Pressure in the system is maintained at 1 atm. The two moles of copper are thermally insulated from the surroundings. Cp = 33.64 + 6.28x10^-3*T J/mol*K (a) Calculate the common temp. in the adiabatic enclosure when thermal equilibrium is reached. (b) How much heat is transferred between the two parts of the system? Entropy?
A stick of mass M is held by supports at each end, with each support providing a force of Mg/2. PWhat forces do the three support now provide
A ball of mass m=0.8kg is tied to the end of a string of length L=0.2m and released when the string is held horizontally. How far will the block slide to the right before coming to rest
Brain injuries in auto accidents. Brain injuries generally occur any time the brain's acceleration reaches 100 g for even a short time. Find the maximum speed with which the car can strike the barrier without causing brain injury, using an airbag
it is approximately 5800 kelvin on the surface of the sun.a. how much faster do sound waves travel there than on earth?
a 16.0 kg fish swimming at 1.40 ms suddenly gobbles up a 4.50 kg fish that is initially stationary. neglect any drag
A sound wave from a police siren has an intensity of 103.1 W/m2 at a certain point; find the intensity level of the sound wave due to the ambulance?
Four equal masses m are located at the corners of asquare of side script i connected by essentially massless rods. For the following answers you may use the symbols m for m,L for script i, and g for the acceleration ofgravity. Find the rotational ine..
The total translational kinetic energy of the molecules of a sample of gas at 421 k is 3.95x10^4j. Find the average translational kinetic energy of a single molecule
A box of 10 kg is being pulled across a floor with a tension force of 50 N. Assume the box started from rest and reached a speed of 2 m/s
Rumor has it that a photographic camera on a spy satellite can read the license plate of an automobile on the ground. what must be the diameter of the aperture of the camera
A 67.0 kg diver is 4.90 m above the water, falling at speed of 6.40 m/s. Calculate her kinetic energy as she hits the water
A father (m = 90 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast is the father moving.
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