A shell is launched with a velocity of 100 m/s at an angle of 30.0° above horizontal from a point on a cliff 50.0 m above a level plain below
How far from the base of the cliff does the shell strike the ground? There are no appreciable effects of air, and g = 9.80 m/s2 at the location of the cliff.
963 m
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A) antimatter B) any object with mass C) electromagnetic radiation D) neutrinos E) All of the above
An ideal spring with a spring constant of 15 N/m is initially compressed by 3.0 cm from its uncompressed position. How much work is required to compress the spring an additional 4.0 cm?
A) 0.0068 J B) 0.012 J C) 0.024 J D) 0.030 J
A woman standing on the surface of Earth has a mass of 70 kg and a weight of 700 N. If instead she is floating freely inside a non-rotating space habitat far from Earth, her mass would be
1) less than 70 kg 2) 70 kg 3) more than 70 kg and her weight would be 4) less than 700 N. 5) 700 N. 6) more than 700 N.
________ is the largest of the terrestrial planets.
A. Venus B. Jupiter C. Mars D. Mercury E. Earth