In which situation's would angular acceleration be negative? Select all that apply 1. An object is at rest and is starting to rotate clockwise 2. An object is rotating clockwise and speeding up 3. An object is rotating clockwise and speeding up 4. An object is rotating counterclockwise and slowing down
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be negative? Select all that apply
1. An object is at rest and is starting to rotate
clockwise
2. An object is rotating clockwise and
speeding up
3. An object is rotating clockwise and
speeding up
4. An object is rotating counterclockwise and
slowing down"
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- 12Please don't provide handwritten solution... As the rotational speed of a space habitat increases, the apparent weight of people inside A. decreases. B. increases. C. stays the same. D. is one-half the space habitat's center of gravity.The period of rotation of a Ferris Wheel is 2 minutes and 45 seconds. Find the tangential speed of the passengers if the radius of the wheel is 25m. a.0.35 m/s b.0.75 m/s c.0.83 m/s d. 0.95 m/s e. none of the above
- The turntable of an old record player has two readings: 33 rpm and 45 rpm. Suppose that the rotational acceleration is constant in each of the following cases. When the player is turned on and rotating at 33 rpm, it is turned off and slows and stops in 55 s . Determine the magnitude of the rotational acceleration of the turntable. When the player is turned off and you push the play button, the turntable attains a speed of 33 rpm in 13 s . Determine the magnitude of the rotational acceleration of the turntable.A centrifuge in a medical laboratory rotates at an angular speed of 3,800 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge. rad/s2A centrifuge in a medical laboratory rotates at an angular speed of 3,650 rev/min. When switched off, it rotates through 46.0 revolutions before coming to rest. Find the constant angular acceleration (in rad/s2) of the centrifuge. rad/s2
- 2.) A spinning, flat disk of radius 2.0 m has a tangential velocity at its edge of 4.5 m/s. a. Consider a point 0.33 meters from the axis of rotation. Find the tangential velocity there? b. Find the angular velocity at the edge of the disk. c. Find the angular velocity at that point 0.33 m from the axis of rotation. d. Find its centripetal acceleration at the edge. e. Using "b." above find in radians how far the point on the edge travels in 15 s.A disk is initially at rest. A penny is placed on it at a distance of 1.7 m from the rotation axis. At time t = 0 s, the disk begins to rotate with a constant angular acceleration of 1.3 rad/s2 around a fixed, vertical axis through its center and perpendicular to its plane. Find the magnitude of the net acceleration of the coin at t = 1.4 s. _______ m/s2Applications Passengers on this amusement ride are subjected to curvilinear translation since the vehicle moves in a circular path but always remains upright. If the angular motion of the rotating arms is known, how can we determine the velocity and acceleration experienced by the passengers? Does each passenger feel the same acceleration? W.Wang
- If point on a front wheel of the bicycle tire completes exactly eight turns, what can be said about the linear and angular acceleration of point . a. Only the angular displacement is zero. b. Only the linear displacement is zero. c. Neither is zero. d. Both are zero.hw 27 question 4Part a & b please