Answers: 1
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.
Answers: 1
Physics, 22.06.2019 14:30, lizzie3545
Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
Answers: 2
Physics, 22.06.2019 17:30, funnybugy16
How does the entropy of steam compare to the entropy of ice?
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Physics, 22.06.2019 18:00, cratsley321
By what primary heat transfer mechanism does the sun warm the earth?
Answers: 1
Which wave A or B has a higher energy...
Mathematics, 06.02.2022 19:30
Mathematics, 06.02.2022 19:30
Mathematics, 06.02.2022 19:30
Mathematics, 06.02.2022 19:30