Physics, 26.03.2021 16:00 lovelarissa
*Please help* An 80kg man sits on the blunt end of a drawing pin which has an area of 0.7(2). Calculate the pressure exerted by the pin on the man
Answers: 3
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Abaseball is thrown a distance of 20 meters. what is its speed if it takes 0.5 seconds to cover the distance
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According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f
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Acar moves a distance of 50.0 km west, followed by a distance of 64.9 km north what was the magnitude of the displacement of the car, in units of kilometers?
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Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
*Please help* An 80kg man sits on the blunt end of a drawing pin which has an area of 0.7(2).
Calcu...
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