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Physics, 21.06.2019 19:50
An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.
Answers: 1
Physics, 21.06.2019 21:00
Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?
Answers: 2
Physics, 22.06.2019 10:00
The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
Physics, 22.06.2019 17:50
Convection occurs when thermal energy is transferred by the movement of
Answers: 1
State Newton law of gravity...
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