On a cold winter day, the outside temperature is -20C and the inside temperature is maintained at 20C. There is a net heat flow to the outside through the walls, roof, etc., of 25 kW.
What is the rate of increase of the entropy of the universe as a result of this? A) 13 W/K
B) 25 W/K
C) 85 W/K
D) 99 W/K
E) 0 W/K
Question 2
A mass is attached to a spring. It oscillates at a frequency of 4.0 Hz when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity attained by the mass?
A) 0.08 m/s
B) 0.32 m/s
C) 0.02 m/s
D) 0.40 m/s
E) 0.50 m/s
Sika deer in winter
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The primary windings are inside the secondary windings on this General Motors coil.
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Check heat source for temperature. Evaluate the amount of heat given off from the source using your ...
Summary of Guidelines for Safe Use of Cold and Ice Packs before and during Massage