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A 100 ohm resistor is immersed in a constant temp bath at 300 K. A current of 10 amps flows through the resistor and a steady state is achieved.
a) Is there a flow of heat into the resistor?
b) Is there a flow of heat into the water?
c) Is work done on the resistor?
d) Apply the 1st law of thermodynamics to the resistor in it's steady state.
e) Does the entropy of the resistor change?
f) Does the entropy of the environment change?
g) If so, in either case, at what rate?
A 1.0- μm-diameter oil droplet (density 900 kg/m3) is negatively charged with the addition of 40 extra electrons. What is the surface charge density of the plane
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A 50-kg person steps on a scale in an elevator that is moving upward. The scale reads 512.5 N. What is the magnitude in m/s2 of the acceleration of the elevator
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A spherical shell has inner radius R_1, outer raduis R_2, and mass M, distributed uniformly throughout the shell. The magnitude of the gravitational force exerted on the shell by a point particle of mass m,located a distance d from the center, out..
A tuning fork generates sound waves from a frequency of 246 Hz. The waves travel in opposite directions along a hallway, are reflected by end walls, and return. The hallway is 47.0m long and the tuning fork is located 14.0 m from one end.
Large meteorites are hardly slowed by Earth's atmosphere. how long does it take to reach the ground
Problem on the velocity of boat
An electron is accelerated from rest through a potential difference that has a magnitude of 2.70 × 107 V. The mass of the electron is 9.11 × 10-31 kg, What is the relativistic kinetic energy (in joules) of the electron
The following table of data shows a linear relationship between two variables, s and t. If you were to plot s vs. t, what would the slope be and what would the y-intercept be? (Note: You do not need to make a graph.)
In a laboratory experiment, a Physics Major is given a stopwatch. a meterstick, and a simple pendulum, what value will he obtain for the acceleration due to gravity
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