In a fission reaction, a 235U nucleus captures a neutron. This results in the creation of the products 141Ba and 92Kr along with how many neutrons?
a. 1
b. 2
c. 3
d. 5
c
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In walking barefoot on red-hot coals, providing that bits of coal do not stick to your feet, it would be safer if your feet are
A) wet. B) dry. C) either of these D) none of the above
The charge flowing through a light bulb attached to a 12.0-V battery in 13.0 s is 30.0 C. What is the average power supplied by the battery during this process?
a. 360 W b. 12.0 W c. 27.7 W d. 5.20 W e. 30.0 W
Forbidden transitions and selection rules suggest that
a. a photon has linear momentum. b. a photon has energy. c. a photon has angular momentum. d. a photon has parity. e. a photon has mass.
) Based on observations, which of the following statements about stars in the Milky Way is generally true?
A) the older the star, the lower its abundance of heavy elements B) the older the star, the bluer its color C) the older the star, the faster its orbital speed D) the younger the star, the higher its mass E) the less massive the star, the older it is