Physics, 22.04.2020 03:13 lovebunfan
A girl of mass 33.6 kg stands on the rim of a frictionless merry-go-round of radius 1.75 m and rotational inertia 453 kg·m2 that is not moving. She throws a rock of mass 824 g horizontally in a direction that is tangent to the outer edge of the merry-go-round. The speed of the rock, relative to the ground, is 3.92 m/s. Afterward, what are (a) the angular speed of the merry-go-round and (b) the linear speed of the girl?
Answers: 2
Physics, 22.06.2019 03:00
1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of
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Physics, 22.06.2019 03:30
Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)
Answers: 1
Physics, 22.06.2019 05:00
Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
Answers: 1
A girl of mass 33.6 kg stands on the rim of a frictionless merry-go-round of radius 1.75 m and rotat...
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