What is 34 + ( 4 ) × (1.2465 ) written with the correct number of significant figures?
A)
39.0
B)
38.99
C)
4 × 101
D)
39
E)
38.986
D
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How do the atmospheres of the Moon and Mercury compare?
A) Mercury's is much denser, like Venus, with much carbon dioxide. B) They are about equal, each only 1% as dense as ours. C) The cooler Moon retains a thicker nitrogen atmosphere. D) As no spacecraft has yet landed there, no information exists about Mercury's. E) Neither body has a permanent true atmosphere.
When a 12.0 volt battery is connected to a 6.00 ?F capacitor:
(a) how much energy is stored? (b) how much charge is stored on the positive plate of the capacitor?
You push on a block on frictionless ice with a force of 8 N, causing it to accelerate at 2 m/s2 . The mass of the block is
a. 2 kg b. 4 kg c. 8 kg d. 16 kg e. 6 kg
In what way is Venus most similar to Earth?
A) Both planets are nearly the same size. B) Both planets have similar atmospheres. C) Both planets have similar surface geology. D) Both planets have warm days and cool nights.