Physics

Physics, 11.07.2019 23:20, parkerpark9524

Aconical vessel is spinning about the vertical axis is at180 rpm. find the radius r for which te object of mass m will not slide down the ramp. the coefficient of static friction is 0.3 and the kinetic friction is 0.2

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Physics, 26.07.2019 19:10, kenishawilkinsoy4mgw

In a follow-up experiment, two identical gurneys are placed side-by-side on a ramp with their wheels locked to eliminate spinning. gurney 1 has a dummy placed on it to give it a total mass of 200 kg, while gurney 2 is loaded with a dummy that makes it only 50 kg overall. if the ramp has a coefficient of friction of μs, which gurney is more likely to slide down the ramp?

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Physics, 17.09.2019 23:30, titofigueroa777

Two objects slide without friction on a circular ring of radius r oriented in a vertical plane. the heavier object (of mass 3m) is attached to a spring with an unstretched length of zero (admittedly an unphysical assumption) and spring constant k. the fixed end of the spring is attached to a point a horizontal distance 2r from the center of the circle. the lighter object (of mass m) is initially at rest at the bottom of the ring. the heavier object is released from rest at the top of the ring, then collides with and sticks to the lighter object. find the value for m that will allow the combined object (of mass 4m) to just reach the point a on the ring, but go no higher. express your answer in terms of some or all of the quantities k, r and the acceleration of gravity g.

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Physics, 19.09.2019 00:30, 21shuldrak

Two objects slide without friction on a circular ring of radius r oriented in a vertical plane. the heavier object (of mass 3m) is attached to a spring with an unstretched length of zero (admittedly an unphysical assumption) and spring constant k. the fixed end of the spring is attached to a point a horizontal distance 2r from the center of the circle. the lighter object (of mass m) is initially at rest at the bottom of the ring. the heavier object is released from rest at the top of the ring, then collides with and sticks to the lighter object. find the value for m that will allow the combined object (of mass 4m) to just reach the point a on the ring, but go no higher. express your answer in terms of some or all of the quantities k, r and the acceleration of gravity g.

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