Physics, 11.01.2020 04:31 Kjswagout40081
A75.0-kg firefighter climbs a flight of stairs 28.0 m high. how much work does he do?
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Which of the following is an example of motion in two dimensions?
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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.
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Physics, 22.06.2019 16:00
What is friction? how does it affect the motion of an object?
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Physics, 22.06.2019 18:00
Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly
Answers: 2
A75.0-kg firefighter climbs a flight of stairs 28.0 m high. how much work does he do?...
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