Afactory worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity by pushing horizontally on it. the coefficient of kinetic friction between the crate and the floor is 0.25. (a) what magnitude of force must the worker apply? (b) how much work is done on the crate by this force? (c) how much work is done on the crate by friction? (d) how much work is done on the crate by the normal force? by gravity? (e) what is the total work done on the crate?
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Physics, 22.06.2019 05:30
Could someone . i have tried to solve myself but my calculation is off
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Physics, 22.06.2019 09:00
What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.
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Physics, 22.06.2019 14:00
Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.
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Physics, 22.06.2019 14:30
Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal
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Afactory worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity...
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