The fuel that provides most of the electricity in the U.S. is ________
a. oil b. natural gas c. coal d. uranium e. solar
c
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A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
A. 2.4 J B. 9.6 J C. 5.4 J D. 0.6 J E. 6.0 J
A quantity of monatomic ideal gas expands adiabatically from a volume of 2.5 liters to 6.3 liters. If the initial pressure is P0, what is the final pressure?
a. 2.5P0 b. 4.7P0 c. 5.0P0 d. 0.21P0 e. 0.43P0
The northern Atlantic Ocean is the source region for the ______________ type of air mass
a. cA b. cP c. mP d. mT
A bar magnet is falling through a loop of wire with constant velocity. The south pole enters first. As the magnet leaves the wire, the induced current (as viewed from above):
a. is along the length of the magnet. c. is counterclockwise. b. is clockwise. d. is zero.