A space tow barge pushes on a spaceship with a rest mass of 15,000 kg and accelerates it from a speed of 0.600c to a speed of 0.700c. How much work does the tow barge have to do to accomplish this?
A) 1.35 × 1020 J
B) 2.03 × 1020 J
C) 2.70 × 1020 J
D) 5.42 × 1020 J
E) 8.78 × 1019 J
B
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A rigid cylinder (15 cm radius, 15 cm height) contains nitrogen gas 
at standard temperature and pressure. What is the total translational kinetic energy of the gas molecules in the cylinder?
A. 1.6 kJ B. 0.51 kJ C. 0.86 kJ D. 2.7 kJ
A horizontal force is applied to a 2.0 kg box. The box starts from rest, moves a horizontal distance of 12.0 meters, and obtains a velocity of 8.0 m/s. The change in the kinetic energy is
A. 32 J. B. 48 J. C. 50 J. D. 58 J. E. 64 J.
The ________ of the Earth causes the Sun and Moon to rise in the east and set in the west
Fill in the blank(s) with correct word
A car starts from rest and after 10 seconds is traveling at 30 m/s. Assuming that it continues to accelerate at the same rate it will take another ________ seconds to reach 60 m/s.
Fill in the blank(s) with the appropriate word(s).