With which wrench would you have the best success in loosening a bolt? Assume that the socket part of the wrench is the same size in each case
1.one in which the handle is 10 cm long and 2 cm wide
2.one in which the handle is 12 cm long and 2 cm wide
3.one in which the handle is 10 cm long and 4cm wide
4.They would all loosen the bolt just as effectively.
2
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An object that is giving off only infrared electromagnetic waves is giving off heat through:
a. convection. b. conduction. c. radiation. d. visible light.
The wavelength of a periodic wave is 0.500 m. If the frequency is 400 Hz, then what is the magnitude of the k vector of the wave?
A. 12.6 
B. 14.8
C. 18.4
D. 21.0
E. 25.9
Answer the following statement(s) true (T) or false (F)
1. The heat capacity of any energy storage mode with quantized energy levels goes to zero as the temperature T goes to zero. 2. The average x-velocity of molecules in a container of gas at rest is zero. 3. The average molecular speed is zero