Physics, 11.12.2019 17:31 sarah1911

How fast is the earth moving through the universe?

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Physics, 22.06.2019 05:30, keylor97

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Physics, 22.06.2019 06:00, lyn94

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

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Physics, 22.06.2019 08:50, dijonmckenzie3

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

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Physics, 22.06.2019 10:40, rainbowboi

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.