A projectile that is fired vertically from the surface of Earth at 5 km/s will
A) go into circular about Earth.
B) go into an elliptical orbit about Earth.
C) rise and fall back to Earth's surface.
D) none of the above
Answer: C
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The size of Olympus Mons suggests that the crust of Mars is very thick
a. True b. False Indicate whether the statement is true or false
An object of mass 5.0 kg revolves at 600 rpm in a horizontal circle of radius 1.5 m. Determine the
a) period of the object's motion in seconds, b) object's speed, c) magnitude of the centripetal acceleration, d) magnitude of the centripetal force acting on the object.
The quantity 1/2 mv2 is known as
A. work. B. kinetic energy. C. energy. D. power. E. potential energy.
In 2.0 s, a particle moving with constant acceleration along the x axis goes from x = 10 m to x = 50 m. The velocity at the end of this time interval is 10 m/s. What is the acceleration of the particle?
A. +15 m/s2 B. +20 m/s2 C. ?20 m/s2 D. ?10 m/s2 E. ?15 m/s2