Physics, 07.11.2019 08:31 ejhoff4347
A105-kg basketball player crouches down 0.400 m while waiting to jump. after exerting a force on the floor through this 0.400 m, his feet leave the floor and his center of gravity rises 0.950 m above its normal standing erect position. (a) using energy considerations, calculate his velocity when he leaves the floor. (b) what average force did he exert on the floor? (do not neglect the force to support his weight as well as that to accelerate him.) (c) what was his power output during the acceleration phase?
Answers: 1
Physics, 21.06.2019 22:00
Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch
Answers: 1
Physics, 21.06.2019 23:10
A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m
Answers: 1
Physics, 22.06.2019 12:10
Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.
Answers: 1
Physics, 22.06.2019 15:00
What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?
Answers: 1
A105-kg basketball player crouches down 0.400 m while waiting to jump. after exerting a force on the...
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