20-mg bug sits on the smooth edge of a 25-cm-radius phonograph record as the record is brought up to its normal rotational speed of 45 rev/min. How large must the coefficient of friction between the bug and record be it the bug is not to slip off?

Q: A 50.0-kg child stands at the rim of a merry-go-round of radius 2.95 m, rotating with an angular…

A: a) The expression for find centripetal acceleration is ac=v2r=ωr2r=ω2r Insert values in the above…

Q: A compact disk of diameter 14 cm starts from rest and speeds up uniformly to 2 rev/s in 3.0 seconds.…

A: we use the rotational equation of motion

Q: At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 7.30 m above…

A:

Q: A wheel with a radius of 0.5 m and a mass of 100 kg turns freely at 50 rev/min. The wheel can be…

A: Given data: The radius of wheel is r=0.5 m. Mass of wheel is m=100 kg. Velocity of wheel is N=50…

Q: A marble rolls down the track and around a loop-the-loop of radius 0.9 m. The marble has mass 90 g…

A:

Q: An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough…

A: Given: μs=0.3R=2m

Q: A skateboarder is attempting to make a circular arc of radius r = 14 m in a parking lot. The total…

A:

Q: fixed axis 0.69 m away. The mass is initially at rest and undergoes a constant angular acceleration…

A: Given: The Mass(m)= 0.39 kg. The distance (R)= 0.69 m. The angular acceleration α=4.77 rad/s2 The…

Q: An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough…

A: Given: The coefficient of static friction is 0.3. The radius of the drum is 2 m. Introduction: The…

Q: Neutron stars are extremely dense objects that are formed from the remnants of supernova explosions.…

A: Given values -  Mass of Sun=Ms =1.99×1030 kgMass of Neutron=MN =2×MsMass of Neutron=MN =3.98×1030…

Q: A top-loading washing machine has a cylindrical basket that rotates about a vertical axis. The…

A: Given :- Wi = 0  Wf= 5 rev/s t = 10 s after turn of time taken is = 13 s

Q: A record turntable is rotating at 33 rev/min. A watermelon seed is on the turntable 1.1 cm from the…

A: Recall ar=ω2r=rdial accelerationNow when turntable rotates with angular acceleration, it has radial…

Q: A car travels on a horizontal road in a circle of radius 10 m. If the car can travel with a maximum…

A: Given data:  Radius (r) = 10 m Maximum speed (v) = 10 m/s Acceleration due to gravity (g) = 10 m/s2…

Q: An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough…

A: As the vertical cylinder rotates, a centripetal force acts on the person inside. This centripetal…

Q: A child stands on a playground merry-go-round a distance of 1.50m from the rotation axis. The…

A:

Q: In a laundromat, during the spin-dry cycle of a washer, the rotating tub goes from rest to its…

A:

Q: A bucket filled with water does a vertical circle (looping) with an 80 cm radius. What is the…

A:

Q: A carousel with an angular speed of 0.25 rev/s.  As it is brought to rest with a constant…

A: An angular speed, ω=0.25 ravs=0.25×2π rads=1.57 rads and ω0=0. Time, θ=6.5 rev=6.5×2π rad=40.82 rad…

Q: a 1.82 kg shoe (the red box) is pinned against the side of the washing machine during the spin…

A:

Q: a) What is the magnitude of the tangential acceleration of a bug on the rim of a 12.0-in.-diameter…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A 5.4-kg ball is tied to the end of a string.  The ball is then swung at a constant angular velocity…

A: Data provided:  Mass of the ball (m) = 5.4 kg Constant angular velocity (ω) = 14 rad/s Radius (r) =…

Q: A meter stick is allowed to fall from a vertical position and rotate to the ground without slipping.…

A: Meter stick is falling from vertical and rotate to the ground without slipping.

Q: An ultracentrifuge accelerates from rest to 100,000 rpm in 3.50 min. (a)What is its angular…

A: SOlution: Given that n = 100000 rpm t = 3.5 min

Q: If the Earth has no rotational motion, the weight of a person on the equator is W. Determine the…

A:

Q: spherical bowling ball with mass m = 3.2 kg and radius R = 0.108 m is thrown down the lane with an…

A:

Q: Suppose a piece of dust is stuck to a CD such that it does not slip even when the CD is spinning.…

A: Given:-   A piece of dust is stuck to a CD such that it does not slip even when the CD is spinning.…

Q: A 2.1-kg solid sphere rotates about a frictionless axis through its center. A braking force of 0.19…

A: τ=IαrF=25mr2α  r=5F2mα

Q: A star, spinning at a rate of 2.00 rev/s, runs out of thermonuclear fuel and suddenly contracts to…

A: Initial angular velocity, Final radius,

Q: A can of juice rolls down a ramp with angle 65 degrees.  If the slope were frictionless the can…

A: Consider the following diagram of cylinder. Let the mass of the cylinder be m, the frictional force…

Q: A 135-kg merry-go-round in the shape of a uniform, solid, horizontal disk, is set in motion by…

A: Torque can be expressed as, τ=Iα=Fr

Q: A compact disk of diameter 8 cm starts from rest and speeds up uniformly to 2 rev/s in 4.0 seconds.…

A:

Q: Astronauts in the International Space Station must work out every day to counteract the effects of…

A:

Q: A car accelerates uniformly from rest and reaches a speed of 22.4 m/s in 8.92 s. Assume the diameter…

A: Given data: Speed, v=22.4 m/s Time taken, t=8.92 s Diameter, d=57.8 cm=0.578 m Radius, r=0.578…

Q: A record turntable is rotating at 33 rev/min. A watermelon seed is on the turntable 4.9 cm from the…

A:

Q: An ultracentrifuge accelerates from rest to 100,000 rpm in 2.30 min. (a) What is its angular…

A:

Q: An old vinyl record is a thin plastic disk of radius 0.25 m and mass 126 g. It is freely rotating at…

A:

Q: An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough…

A: Given : The coefficient of static friction μs = 0.3                       Radius R = 2 m…