A320-g ball and a 400-g ball are attached to the two ends of a string that goes over a pulley with a radius of 8.7 cm. because of friction in its axle, the pulley does not begin to rotate. what is the magnitude of the frictional torque at the axle of the pulley if the system remains at rest when the balls are released?
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Physics, 22.06.2019 11:30
Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.
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Physics, 22.06.2019 16:30
Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?
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Physics, 22.06.2019 17:30
You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
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A320-g ball and a 400-g ball are attached to the two ends of a string that goes over a pulley with a...
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