In an experiment, a torque of a known magnitude is exerted along the edge of a rotating disk. The disk rotates about its center.
All frictional forces are considered to be negligible. Which of the following quantities should a student collect in order to determine the change in angular momentum of the disk for a specific time interval? Justify your selection. A) The initial angular velocity of the disk, because this quantity is related to the angular impulse of the disk.
B) The amount of time the torque is applied to the disk, because the time interval is related to the angular impulse of the disk.
C) The mass of the disk, because this quantity is related to the rotational inertia of the disk. The radius of the disk, because this quantity is related to the rotational inertia of the disk.
Passed into the power grid for others to use the electricity
Explanation:
If a home uses a large supply of solar panels to generate electricity, but has no battery system, surplus electricity that is produced is usually passed into the power grid for others to use the electricity, generating a income to the homeowner
centripetal acceleration can be determined using the following equation; a = v² / r a= centripetal acceleration v = velocity r = radius substituting the values in the equation, a = (300 m/s)*(300m/s) / (1.85 *1000) m = 48.64 ms-²
