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Estimate the force a person must exert on a string attached to a 0.145 kg ball to make the ball revolve in a horizontal circle. The ball makes 2.20 revolutions per second (T = 0.455 s ). Don't ignore the weight of the ball which revolves on a string 0.500 m long.
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Physics, 22.06.2019 17:00, Gabriel134
Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?
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Estimate the force a person must exert on a string attached to a 0.145 kg ball to make the ball revo...
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