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A 15.0 kg block of ice at 0 degrees C falls into Lake Superior, which is a freshwater lake. The laker water is at 10 degrees C, and the latent heat of fusion for ice is 3.34X10^5 J/kg. Find the various changes in entropy due to the melting of the ice.
a. What is the change in entropy, delta S, of the block of ice?
b. What is the change in entropy, delta S, of the lake?
c. What is the change in entropy, delta S, of the system consisting of the lake and the ice?
d. Is your answer to part (c) consistent with the reversibility of irreversibility of the melting process? Explain.
If the electric field has a magnitude of 450 and the magnetic field has a magnitude of 0.19 , illustrate what speed must the particles have to pass through the selector undeflected?
A 1.5 {rm kg} block rests on top of a 7.5 {rm kg} block. The cord and pulley have negligible mass, and there is no significant friction anywhere. What force F should be applied to bottom block so the top block accelerates to the right at 2.60 m/s^..
Magnitude your response differs from the accurate answer by more than 10%. Double check the calculations. N direction.what is the maximum speed car can have without losing contact with road as it passes this highest point.
A hot wheels track has a spring loaded launcher. A 100g car is pushed into the launcher, which compresses the spring by 2cm. The cars initial velocity after launching is 3m/s.
suppose that both cars start at the same point, how much sooner does the faster car arrive at a destination 35 km away.
Biological muscle cells can be thought of as nanomotors that use the chemical energy of ATP to produce mechanical work. How much work is done by such proteins
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 12-g nail
How much time does the object take to reach the ground.
A 13 g bullet traveling 215m/s penetrates a 2 kg block of wood and emerges cleanly at 157m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after bullet emerges.
What is the distance delta y between the two points that you observe? suppose that the plates have length d , and use e and m for the charge and the mass of the electrons, respectively.
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
The armature of an ac generator is a rectangular coil, 2.0 cm by 6.0 cm with 80 turns. at what angular speed is the armature rotating
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