Circular Motion: Please answer vertically. Thank You. A penny is put on a turntable 0.4 meters from its center. The coefficient of friction between them is .0.20. a) What velocity can the penny have before it starts to slip? b) How many rotations can the penny make per minute at this velocity/

A. A 1800 kg car's tires have a coefficient of friction equal to 0.25 on wet asphalt. What is the fastest that this car can drive along a flat turn with a radius of 200 m without slipping? B. How would this speed change if the car had a mass of 3600 kg instead? C. How would this speed change if the road were slanted? Would the possible speed be higher or lower?

A 55.8kg ice skater is moving at 4.03 m/s when she grabs the loose end of rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.797 m around the pole . A.)Determine the force exerted by the horizontal rope on her arms. B.) what is the ratio of this force to her weight

You have a horizontal grindstone (a disk) that is 95 kg, has a 0.36 m radius, is turning at 86 rpm (in the positive direction), and you press a steel axe against the edge with a force of 24 N in the radial direction. 1)Assuming that the kinetic coefficient of friction between steel and stone is 0.20, calculate the angular acceleration of the grindstone in rad/s2.  2)What is the number of turns, N, that the stone will make before coming to rest?

Pls answer all of it and box the answers thank you

If 0.5 kg-ball is swung in the horizontal direction, what force must a person exert on a string attached to make it revolve in a horizontal circle of radius 2.5 m. The ball makes 420 rpm.

A bug has a mass of 3 g and is rotating around acompact disk. Its velocity is 1.2 m/s. If the cd was rotating anyfaster, the bug would fly off. The coefficient of static frictionis 0.25.a) What is the magnitude of the frictional force on the bug?b) What is the magnitude of the centripetal force on the bug?c) What is the magnitude of the bug's acceleration?d) What is the radius of the cd?e) What is the period of one revolution for the bug?

Current Attempt in Progress In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.516 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an angle of 0 above the horizontal, it loses contact with the wall of the cylinder and falls onto the clothes below. How many revolutions per second should the cylinder make in order that the clothes lose contact with the wall when 0 = 57.0°? Number eTextbook and Media Save for Later Units > //education.wiley.com/was/ui/v2/assessment-player/index.html?launchid=87c04f9d-f34c-4936-9853-f4158c3e5e24# Attempts: 1 of 5 used Submit Answer

A 50 g ball of clay is thrown from the left tangent to the top of a 2.0 kg, 30-cm-diameter sphere that spins at a frequency of 1 rev/s ccw about its center. Assuming that the clay sticks to the sphere, how fast must you throw the clay to ensure that the spinning sphere comes to a stop?

A cat dozes on a stationary merry-go-round, at a radius of 4.1 m from the center of the ride. The operator turns on the ride and brings it up to its proper turning rate of one complete rotation every 6.5 s. What is the least coefficient of static friction between the cat and the merry-go-round that will allow the cat to stay in place, without sliding? Number i Units >