Abranch of a tree grows out from the trunk at an angle of 25.0° above the horizontal. two children hang by their hands from the branch of the tree. the first child has a mass of 48.0 kg and hangs 1.40 m from the tree trunk, as measured along the length of the branch. the second child, with a mass of 31.0 kg, hangs 1.85 m from the tree trunk, also measured along the branch. determine the magnitude (in n · m) of the net torque exerted on the branch by the children, about an axis located where the branch joins the tree trunk and is perpendicular to the plane formed by the branch and the trunk.
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Physics, 22.06.2019 09:30, tsvijay121
Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec
Answers: 3
Physics, 22.06.2019 12:10, aedelfrance9250
Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)
Answers: 1
Physics, 22.06.2019 19:30, diyagawande
Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.
Answers: 1
Abranch of a tree grows out from the trunk at an angle of 25.0° above the horizontal. two children h...
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