Which of the following has the highest specific heat?
a. ice
b. water
c. steam
d. They are all water, so they all have the same specific heat.
B
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Increasing the voltage across the two plates of a capacitor will produce what effect on the capacitor?
a. increase charge b. decrease charge c. increase capacitance d. decrease capacitance
Two bodies revolve around their common center of mass, the balance point of the system
Indicate whether the statement is true or false
When you catch a ball, you feel a force against your hand. Why?
What will be an ideal response?
A light bulb with a tungsten filament is attached to a source of variable voltage. As the voltage is increased on the bulb,
a. the bulb's resistance decreases. b. the bulb's resistance increases. c. the current in the bulb decreases. d. the power dissipated remains constant.