this situation is about a dvd disk 8.0cm in diameter that is initially at rest. The disk accelerates at 600 rad/s^2 for 0.5s, then coasts at a steady angular velocity for another 0.5s. and then slows down during 2.0s and stops. Through how many revolutions has the disk turned when it stops.
this situation is about a dvd disk 8.0cm in diameter that is initially at rest. The...
A computer hard disk 8.0 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. The disk accelerates at 530 rad/s^2 for 12s, then coasts at a steady angular velocity for another 12s. What is the speed of the dot at t = 1.0 s? Express your answer to two significant figures and include the appropriate units. Through how many revolutions has it turned? Express your answer using two significant figures.
3. A disk 6.0cm in diameter and moment of inertia of 0.015kg-m’ initially at rest at t = 0, is spun up to 720-rpm over 6.0s about an axis through its center of mass. Assume the angular acceleration is constant. a) Find the angular velocity (rad/s) at 6.0s b) Find the angular acceleration (rad/s) c) Find the number of revolutions the disk spins through during that interval. d) What is the mass of the disk? e) What is the change...
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 43 rad/s. The wheel is run at that angular velocity for 39 s and then power is shut off. The wheel slows down uniformly at 1.8 rad/s2 until the wheel stops. In this situation, the total number of revolutions made by the wheel?
A circular disk initially at rest experiences a uniform angular acceleration through 2 revolutions in 10 s. If angular velocity at the end if 10 s is 2.5 rad/s what was the uniform angular acceleration
A DVD disk with a diameter d = 12 cm spins with an angular velocity ω = 4600 rpm (revolutions per minute). What are its (a) frequency f in rev/s (Hz), (b) period T in seconds, and (c) angular velocity ω in rad/s? a) f = 76.7 Hz b) T = 0.013 s =13.0 ms c) ω = 481.9 rad/s How do you get all these answers step by step?
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 93 rad/s. The wheel is run at that angular velocity for 23 s and then power is shut off. The wheel slows down uniformly at 1.1 rad/s2 until the wheel stops. In this situation, the angular acceleration of the wheel between t = 0 s and t =...
A machinist turns on the power on to a grinding wheel at time t = 0s. The wheel accelerates uniformly from rest for 10s and reaches the operating angular speed of 58 rad/s. The wheel is run at that angular velocity for 30s, and then power is shut off. The wheel slows down uniformly at 1.4 rad/s^2 until the wheel stops. What is the total number of revolutions made by the wheel in this situation ? A machinist turns on...
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 40 rad/s. The wheel is run at that angular velocity for 34 s and then power is shut off. The wheel slows down uniformly at 2.8 rad/s2 until the wheel stops. In this situation, the time interval of deceleration is closest to:
A disk of radius 1.5m initially at rest begins rotating about its center with constant angular acceleration of 0.2 rad/s2. Calculate the following: a) The angular velocity of the disk after 4s. b) The linear velocity of a point on the rim of the disk after 4s. c) The amount of rotation after 4s.
5) A machinist turns the power on to a grinding wheel, at rest, at time t=0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. The wheel is run at that angular velocity for 40 s and then power is shut off. The wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. In this situation, the time interval of deceleration is closest to: