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A 15.0-kg block of ice at 0.00 °C falls into Lake Superior, which is a freshwater lake. The lake water is at 10.0 °C, and the latent heat of fusion for ice is 3.34 × 105 J/kg. Find the various changes in entropy due to the melting of the ice.
a. What is the change in entropy, ΔS, of the block of ice?
b. What is the change in entropy, ΔS, of the lake?
c. What is the change in entropy, ΔS, of the system consisting of the lake and the ice?
d. Is your answer to part (c) consistent with the reversibility or irreversibility of the melting process? Explain.
A -7-nC point charge is located at the center of a conducting spherical shell. The shell has an inner radius of 2 m, an outer radius of 4 m, and a charge of +7 nC. (Let the radially outward direction be positive.) What is the electric field at r = ..
A seasoned mini golfer is trying to make par on a tricky hole #5. at what speed must the golfer hit the ball to land the ball in the hole? Assume a frictionless surface and the acceleration due to gravity is 9.81 m/s2
If the ball is released from rest at a height of 0.78m above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? suppose the ball is a solid sphere of radius 2.3cm and mass 0.14k..
Two concentric spheres of radii a and b> a have equal and oppposite charge Q when the potential diffrence between them is V. What is the capacitance of the spheres
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List the four quantum numbers (n, l, m, s) for each possible electron state for a nucleus with n=3. How many possible states are there
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To basketball player bounces the 0.60-kg basketball to anotherplayer by bouncing it off the court. what was the impulse delivered to it by the court
A 2.41 mol sample of an ideal gas expands reversibly and isothermally at 403 K until its volume is doubled. What is the increase in entropy of the gas
A satellite moves in a circular orbit around the Earth at a speed of 5.3 km/s. Find the satellites altitude above the surface of the Earth
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.80 cm into the water. What is the weight of the truck
Beginning with S = klnNs and dU = TdS - PdV + μdN for the microcanonical ensemble, derive expressions for P, μ, G, F, U and H.
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