How many joules of energy are required to accelerate one kilogram of mass from rest to a velocity of 0.886c?
A) 1.8 × 1017 J
B) 9.0 × 1016 J
C) 3.0 × 103 J
D) 8.1 × 1021
E) 3.4 × 10-7
B
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The star Wolf 359 is 7.7 light years away. What is that distance in kilometers?
a. 7.7 x 10^8 km b. 14 x 10^13 km c. 0.78 x 10^8 km d. 7.28 x 10^13 km e. 7.28 x 10^12 km
Why is the hypothesis that life on Earth came from outer space considered plausible?
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