The diameter of an audio compact disk is 12.0 cm. When the disk is spinning at...
The diameter of an audio compact disk is 12.0 cm. When the disk
is spinning at its
maximum rate of 540 rpm, what is the difference in speed of a point
at a distance 2.0 cm
from the center and at the outside edge of the disk, 6.0 cm from
the center?
2,200 m/s
140 m/s
4.0 m/s
2.3 m/s
Homework Answers
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The diameter of an audio compact disk is 12.0 cm. When the disk
is spinning at...
When a compact disk with a 12.0-cm diameter is rotating at 34.6 rad/s, what are (a)...
When a compact disk with a 12.0-cm diameter is rotating at 34.6 rad/s, what are (a) the linear speed and (b) the centripetal acceleration of a point on its outer rim? (c) Consider a point on the CD that is halfway between its center and its outer rim. Without repeating all of the calculations required for parts (a) and (b), determine the linear speed and the centripetal acceleration of this point.
A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.40 rev/s in 3.20 s What is the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is 3.00 {rev/s}
A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.40 rev/s in 3.20 s What is the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is 3.00 {rev/s}?
A rotor wheel disk has a mass of 2.0 kg and is 30 cm in diameter....
A rotor wheel disk has a mass of 2.0 kg and is 30 cm in diameter. At the operating speed it rotates at a speed of 300 rpm. If only friction was applied from the brake pads at the edge of the disk, how much frictional force is need to stop the disk in 3.0 s?
Starting from rest, a 10.06-cm-diameter compact disk takes 8.5 s to reach its operating angular velocity...
Starting from rest, a 10.06-cm-diameter compact disk takes 8.5 s to reach its operating angular velocity of 2381 rpm. Assume that the angular acceleration is constant. The disk�s moment of inertia is 1.00×10-5 kg·m2. How much torque is applied to the disk? 0.0003 N*m How many revolutions does it make before reaching full speed?
The 2.5 kg, 35-cm-diameter disk in the figure is spinning at 300 rpm. Part A) How...
The 2.5 kg, 35-cm-diameter disk in the figure is spinning at 300 rpm. Part A) How much friction force must the brake apply to the rim to bring the disk to a halt in 2.50 s?
The 3.20 kg , 31.0-cm-diameter disk in the figure (Figure 1) is spinning at 310 rpm...
The 3.20 kg , 31.0-cm-diameter disk in the figure (Figure 1) is
spinning at 310 rpm .
How much friction force must the brake apply to the rim to bring
the disk to a halt in 2.60 s ?
Brake
V. A 10-cm diameter, solid, uniform circular disk with mass 0.2 kg rolls, without slipping, starting...
V. A 10-cm diameter, solid, uniform circular disk with mass 0.2 kg rolls, without slipping, starting from rest, down a long 30° incline. It reaches an angular speed of 8 rad/s in 4 s. The distance moved by the center of mass of the disk in 2.0 s is: a. 0.8 m b. 0.1 m c. 0.2 m d. 2.0 m e. None of the above
V. A 10-cm diameter, solid, uniform circular disk with mass 0.2 kg rolls, without slipping, starting...
V. A 10-cm diameter, solid, uniform circular disk with mass 0.2 kg rolls, without slipping, starting from rest, down a long 30° incline. It reaches an angular speed of 8 rad/s in 4 s. The distance moved by the center of mass of the disk in 2.0 s is: a. 0.8 m b. 0.1 m c. 0.2 m d. 2.0 m e. None of the above
A DVD (radius 6.0 cm) is spinning freely with an angular velocity of 1150 rpm when...
A DVD (radius 6.0 cm) is spinning freely with an angular velocity of 1150 rpm when a bug drops onto and sticks to the DVD a distance 4.4 cm from the center. If the DVD slows to 900 rpm, what is the ratio of the bug's mass to the DVD's mass? (Ignore the effect of the hole in the center of the DVD.) mbug mOVD
10) A solid disk of radius 12.2 cm and mass 4.24 kilograms is spinning at 43.1...
10) A solid disk of radius 12.2 cm and mass 4.24 kilograms is spinning at 43.1 radians per second around an axis through its center. In order to stop the disk from spinning, a piece of plastic is pressed against the edge of the disk, as shown. If the coefficient of kinetic friction between the plastic and the disk is 0.622, with what force must the plastic be pressed against the edge of the spinning disk in order for the...
The 3.20 kg , 31.0-cm-diameter disk in the figure (Figure 1) is
spinning at 310 rpm .
How much friction force must the brake apply to the rim to bring
the disk to a halt in 2.60 s ?
Brake
V. A 10-cm diameter, solid, uniform circular disk with mass 0.2 kg rolls, without slipping, starting from rest, down a long 30° incline. It reaches an angular speed of 8 rad/s in 4 s. The distance moved by the center of mass of the disk in 2.0 s is: a. 0.8 m b. 0.1 m c. 0.2 m d. 2.0 m e. None of the above
V. A 10-cm diameter, solid, uniform circular disk with mass 0.2 kg rolls, without slipping, starting from rest, down a long 30° incline. It reaches an angular speed of 8 rad/s in 4 s. The distance moved by the center of mass of the disk in 2.0 s is: a. 0.8 m b. 0.1 m c. 0.2 m d. 2.0 m e. None of the above
A DVD (radius 6.0 cm) is spinning freely with an angular velocity of 1150 rpm when a bug drops onto and sticks to the DVD a distance 4.4 cm from the center. If the DVD slows to 900 rpm, what is the ratio of the bug's mass to the DVD's mass? (Ignore the effect of the hole in the center of the DVD.) mbug mOVD
10) A solid disk of radius 12.2 cm and mass 4.24 kilograms is spinning at 43.1 radians per second around an axis through its center. In order to stop the disk from spinning, a piece of plastic is pressed against the edge of the disk, as shown. If the coefficient of kinetic friction between the plastic and the disk is 0.622, with what force must the plastic be pressed against the edge of the spinning disk in order for the...
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