What do "kiloton" and "megaton" refer to?
a. explosive yields of nuclear weapons
b. kiloton means 1000 tons of TNT
c. megaton means one million tons of TNT
d. all of the above
D
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The creation of a planetary atmosphere from a planet's interior is called _____
A) differentiation B) outgassing C) condensation D) fogging
Which of the following species is the oxidizing agent?
2 CuBr ? 2Cu + Br2 A) Cu B) CuBr C) Cu+ D) Br- E) Br2
The zirconium nucleus contains 40 protons, and an electron is 1.0 nm from the nucleus. What is the electric force on the electron due to the nucleus? ( e = 1.60 × 10-19 C, k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A) 2.9 nN B) 1000 C C) 3.7 nN D) 6.8 nN E) 9.2 nN
How large should a wall-mounted mirror be to view the upper half of one's height, h?
a. h c. h/4 b. h/2 d. The answer is not given.