Energy and Momentum: If you want to double the momentum of a gas molecule, by what factor must you increase its kinetic energy?
A. 
B. 2
C. 2
D. 4
E. 16
Answer: D
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A glass thermometer using a thin column of ethyl alcohol at room temperature (293.0 K) is cooled. When the temperature reaches 273.0 K the column of alcohol is 15.50 cm high. How tall was it when the temperature was 293.0 K? The coefficient of volume expansion of mercury is 
A. 15.85 cm B. 15.86 cm C. Cannot answer without knowing the diameter of the column D. 15.62 cm
The diagram below shows two connected carts with different masses accelerating due to a constant force F. Which of the following statements is true.
A. The force of m2 on m1 is greater than F.
B. The force of m1 on m2 is equal to F.
C. The force of m1 on m2 is less than F.
Our bodies, at 37.°C, emit radiation which peaks at what wavelength?
What will be an ideal response?
It takes 10 J of work to push a charge into an electric field. Relative to its starting position it has gained a potential energy of
A) less than 10 J. B) 10 J. C) more than 10 J. D) none of the above