Which of these spacecraft went into orbit about Saturn in July 2004?
A) Galileo
B) New Horizons
C) Cassini
D) Voyager 2
E) NEAR-Shoemaker
C
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How much energy is released when 1.40 ?g of 3H have decayed to 3He? The mass of 3He is 3.016029 u, the mass of 3H is 3.016049 u, and 1 u = 931.494 MeV/c2
A) 23,900 J B) 71,700 J C) 830 J D) 7970 J E) 11,900 J
Mercury's magnetic field is thought to be due to:
A) dynamo action, like the Earth's magnetic field. B) a mechanism entirely unique to Mercury. C) being close to the Sun. D) being a fossil remnant dating back to the distant past when the core was more liquid.
An aircraft approaches a runway that runs directly east as a strong wind blows out of the south. The direction that the aircraft should points in order to land on the runway is __________
Fill in the blank(s) with correct word
Whereas impulse involves the time that a force acts, work involves the
A) distance that a force acts. B) time and distance that a force acts. C) acceleration that a force produces.