While spinning down from 500.0 rpm to rest, a solid uniform flywheel does 3.2 kJ of...
While spinning down from 500.0 rpm to rest, a solid uniform flywheel does 3.2 kJ of work. If the radius of the disk is 1.2 m, what is its mass?
While spinning down from 500.0 rpm to rest, a solid uniform flywheel does 3.2 kJ of work. If the radius of the disk is 1.2 m, what is its mass?
| 2.7 kg | |
| 3.7 kg | |
| 4.2 kg | |
| 3.2 kg |
Homework Answers
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While spinning down from 500.0 rpm to rest, a solid uniform
flywheel does 3.2 kJ of...
, n Review Constants Part A A flywheel in a motor is spinning at 580 rpm...
,
n Review Constants Part A A flywheel in a motor is spinning at 580 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm. The power is off for 37.0 s, and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 200 complete revolutions. At what rate is the flywheel spinning when the power comes back...
Energy is to be stored in a flywheel in the shape of a uniform solid disk...
Energy is to be stored in a flywheel in the shape of a uniform solid disk with a radius of 1.28 m and a mass of 75.0 kg. To prevent structural failure of the flywheel, the maximum allowed radial acceleration of a point on its rim is 3510 m/s2 For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable i. Part A What is the maximum kinetic energy that can be...
A flywheel in a motor is spinning at 540 rpm when a power failure suddenly occurs....
A flywheel in a motor is spinning at 540 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 39.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 210 complete revolutions. a) At what rate is the flywheel spinning when the power comes back on? b) How...
9.16) A flywheel in a motor is spinning at 500 rpm when a power failure suddenly...
9.16) A flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 39.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 240 complete revolutions. a. At what rate is the flywheel spinning when the power comes back on? b....
A flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs....
A flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 39.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 240 complete revolutions. 1. At what rate is the flywheel spinning when the power comes back on? 2. How...
A flywheel (a uniform solid cylinder of radius 0.25 m and mass 80 kg) is initially...
A flywheel (a uniform solid cylinder of radius 0.25 m and mass 80 kg) is initially at rest, but free to rotate about the axis through its center. A belt wrapped around it is pulled off horizontally, providing a tangential force of 45 N to the outer rim of the flywheel for 2.00 s. Calculate the final kinetic energy of the wheel.
A solid disk (radius R=2.5 cm , mass M =0.35 kg) rolls without slipping down an...
A solid disk (radius R=2.5 cm , mass M =0.35 kg) rolls without slipping down an 30 degree-incline. If the incline is 4.2 m long and the disk starts from rest, what is the linear velocity of its center of mass at the bottom of the incline (in m/s)?
A solid, uniform disk of radius 0.250 m and mass 53.7 kg rolls down a ramp...
A solid, uniform disk of radius 0.250 m and mass 53.7 kg rolls down a ramp of length 4.20 m that makes an angle of 12.0° with the horizontal. The disk starts from rest from the top of the ramp. (a) Find the speed of the disk's center of mass when it reaches the bottom of the ramp. m/s (b) Find the angular speed of the disk at the bottom of the ramp. rad/s
A flywheel is a solid, rotating disk that is sometimes used to store energy. The moment...
A flywheel is a solid, rotating disk that is sometimes used to store energy. The moment of inertia for a solid disk is 1/2MR^2 where M is the mass and R is the radius. If a flywheel weighs 15kg and has a radius of 0.8m, determine the following. A) If a point on the outside of the disk is moving at 6 m/s, what is the angular velocity of the flywheel? B) If the flywheel starts from rest...
A solid sphere of uniform density starts from rest and rolls without slipping down an inclined...
A solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle e 300. The sphere has mass M 8 kg and radius R - 0.19 m . The coefficient of static frictio between the sphere and the plane is ?-0.64. What is the magnitude of the frictional force on the sphere? N Submit
,
n Review Constants Part A A flywheel in a motor is spinning at 580 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm. The power is off for 37.0 s, and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 200 complete revolutions. At what rate is the flywheel spinning when the power comes back...
Energy is to be stored in a flywheel in the shape of a uniform solid disk with a radius of 1.28 m and a mass of 75.0 kg. To prevent structural failure of the flywheel, the maximum allowed radial acceleration of a point on its rim is 3510 m/s2 For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of An unwinding cable i. Part A What is the maximum kinetic energy that can be...
A solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle e 300. The sphere has mass M 8 kg and radius R - 0.19 m . The coefficient of static frictio between the sphere and the plane is ?-0.64. What is the magnitude of the frictional force on the sphere? N Submit
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