A coin of mass m rests on a turntable a distance r from the axis of rotation. The turntable rotates

A roller coaster car rental italy sicily car is on a track that forms a circular loop in the vertical car rental italy sicily plane. If the car is to just maintain contact with track at the top of the loop, what is the minimum car rental italy sicily value for its centripetal acceleration at this point?
A roller coaster car (mass = M) is on a track that forms a circular loop (radius = r) in the vertical plane. If the car is to just maintain car rental italy sicily contact with the track at the top of the loop, what is the minimum value for its speed at that point?
A coin of mass m rests on a turntable a distance r from the axis of rotation. The turntable rotates with a frequency of f. What is the minimum coefficient of static car rental italy sicily friction between the turntable and the coin if the coin is not to slip?
A car goes around a curve of radius r at a constant speed v. Then it goes around the same curve at half of the original speed. What is the centripetal force on the car as it goes around the curve for the second time, compared to the first time?
A car goes around car rental italy sicily a curve of radius r at a constant speed v. Then it goes around a curve of radius 2r at speed 2v. What is the centripetal force on the car as it goes around the second curve, car rental italy sicily compared to the first?
Two objects, with masses m 1 and m 2 , are originally a distance r apart. The gravitational car rental italy sicily force between them has magnitude F. The second object has its mass changed to 2m 2 , and the distance is changed to r/4. What is the magnitude of the new gravitational force?
Two objects, with masses m 1 and m 2 , are originally a distance r apart. The magnitude of the gravitational force between them is F. The masses are changed to 2m 1 and 2m 2 , and the distance is changed to 4r. What is the magnitude of the new gravitational force?
A hypothetical planet has a mass of half that of the Earth and a radius of twice that of the Earth. What is the acceleration due to gravity on the planet in terms of g, the acceleration due to gravity at the Earth?
.fbtt a.fb {font-weight:bold;text-decoration:none; height:23px !important; width:68px !important; car rental italy sicily padding:5px 0px 0px 40px !important; margin-right:20px; background: url(/images/fbtt_home_qm.png) no-repeat left; background-position:0 2px !important; display:block; float:left;}
.fbtt a.tt {font-weight:bold;text-decoration:none; height:25px !important; width:68px !important; padding:5px 0px 0px 40px !important; margin-right:20px; background: url(/images/fbtt_home_qm.png)no-repeat left; background-position:0px -25px; color:#0084C3; display:block; float:left;}