The fusion reaction 
releases 17.6 MeV of energy. The mass of 2H is 2.01410 u, the mass of 4He is 4.00260 u, and the mass of 1n is 1.00866 u. What is the mass of 3H?
A. 2.99716 u
B. 3.01605 u
C. 3.03494 u
D. 3.04221 u
E. 2.99982 u
B. 3.01605 u
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a. 4.3E+15 Hz b. 2.1E+15 Hz c. 6.5E+14 Hz d. 1.9E+14 Hz e. 6.5E+13 Hz
Two small cylindrical plastic containers with flat bottoms are placed on a turntable that has a smooth flat surface. Canister A is empty; canister B contains lead shot. Each canister is the same distance r from the center. The coefficient of static friction between the canisters and the turntable is ?s. When the speed of the turntable is gradually increased,
A. only the lighter container slides outward off the turntable; the heavier one stays on. B. only the heavier container slides outward off the turntable; the lighter one stays on. C. both containers slide off the turntable at the same turntable speed. D. the lighter container slides inward. E. the heavier container slides inward.
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Your favorite radio station is located due north of your house and broadcasts using a horizontal electric dipole antenna directed north-south. To receive this signal you need to
A. move to a town that is farther to the east or west. B. use a magnetic dipole antenna instead of an electric dipole antenna. C. orient the receiving antenna horizontally north-south. D. use a vertical receiving antenna.