Physics, 08.03.2021 01:40, Dmoney5104
I don't really understand the answer, could someone help me, please :,) A motor drives a shaft of radius R/8 that is attached to the center of a wheel of radius R. The motor is turned off, and the force that the motor exerts on the shaft, Fmotor, varies with time as shown. There is also a constant frictional force of 0.4 N applied to the rim of the wheel in the opposite direction of the motion. During which time interval does the rotational kinetic energy increase and then decrease? (ans: from 3 sec to 5 sec)
Answers: 1
Physics, 22.06.2019 10:00, ceasar6071
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
Physics, 22.06.2019 15:30, hotsaucerman567
What is a subatomic particle with a negative charge and very little mass?
Answers: 1
Physics, 23.06.2019 01:00, ryanbasdao
2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?
Answers: 2
I don't really understand the answer, could someone help me, please :,)
A motor drives a shaft of r...
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