How many octaves exist between 100 hertz and 1600 hertz?
A) 4
B) 5
C) 6
D) 7
E) 8
Answer: A
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Kepler's Laws: If NASA wants to put a satellite in a circular orbit around the sun so it will make 2.0 orbits per year, at what distance (in astronomical units, AU) from the sun should that satellite orbit? The earth's orbit is 1.0 AU from the sun.
A. 7.6 AU B. 0.63 AU C. 0.50 AU D. 2.0 AU E. 0.71 AU
Neglecting air resistance, how fast must you toss a ball straight up in order for it to take 6 seconds to return to its initial level?
A) 5 m/s B) 10 m/s C) 20 m/s D) 30 m/s E) more than 30 m/s
When a car of mass 1167kg accelerates from 10.0 m/s to some final speed, 4.00 × 105 J of work are done. Find this final speed
A) 30.8 m/s B) 22.4 m/s C) 28.0 m/s D) 25.2 m/s
A car moving initially at 30 m/s comes gradually to a stop in 900 m. What was the acceleration of the car?
A. -20 m/s2 B. -0.5 m/s2 C. -10 m/s2 D. -5 m/s2