Review. A light, unstressed spring has length d . Two identical particles, each with charge q , are connected to the opposite ends of the spring. The particles are held stationary a distance d apart and then released at the same moment. The system then oscillates on a frictionless, horizontal table. The spring has a bit of internal kinetic friction, so the oscillation is damped. The particles eventually stop vibrating when the distance between them is 3 d . Assume the system of the spring and two charged particles is isolated. Find the increase in internal energy that appears in the spring during the oscillations.
Review. A light, unstressed spring has length d . Two identical particles, each with charge q , are connected to the opposite ends of the spring. The particles are held stationary a distance d apart and then released at the same moment. The system then oscillates on a frictionless, horizontal table. The spring has a bit of internal kinetic friction, so the oscillation is damped. The particles eventually stop vibrating when the distance between them is 3 d . Assume the system of the spring and two charged particles is isolated. Find the increase in internal energy that appears in the spring during the oscillations.
Solution Summary: The author calculates the internal energy of a spring and two identical charged particles.
Review. A light, unstressed spring has length d. Two identical particles, each with charge q, are connected to the opposite ends of the spring. The particles are held stationary a distance d apart and then released at the same moment. The system then oscillates on a frictionless, horizontal table. The spring has a bit of internal kinetic friction, so the oscillation is damped. The particles eventually stop vibrating when the distance between them is 3d. Assume the system of the spring and two charged particles is isolated. Find the increase in internal energy that appears in the spring during the oscillations.
A certain brand of freezer is advertised to use 730 kW h of energy per year.
Part A
Assuming the freezer operates for 5 hours each day, how much power does it require while operating?
Express your answer in watts.
ΜΕ ΑΣΦ
?
P
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Part B
W
If the freezer keeps its interior at a temperature of -6.0° C in a 20.0° C room, what is its theoretical maximum
performance coefficient?
Enter your answer numerically.
K =
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Part C
What is the theoretical maximum amount of ice this freezer could make in an hour, starting with water at 20.0°C?
Express your answer in kilograms.
m =
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kg
Describe the development of rational choice theory in sociology.
Please include
A-E please
Chapter 25 Solutions
Physics for Scientists and Engineers, Technology Update, Hybrid Edition (with Enhanced WebAssign Multi-Term LOE Printed Access Card for Physics)
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