6. When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed...
Q19 & 20 When a 3,.75-kg fan, having blades 28.5 em long,is turmed off, is angular speed decreases uniformly from 15.0 rad/s to 8.70 rad/s in 4.7 s. 19. What is the magnitude of the angular acceleration of the fan? A) 8.7 rad/s2 B) 0.7 rad/s? 1.34 rad/s 4.7 rad/s2 E) None of the above 20 Through what angle (in degrees) does it turn while it is slowing down during the 4.7 s? 23320 r940 )25000 D) 450° E) None...
When a ceiling fan rotating with an angular speed of 2.75 rad/s is turned off, a friction torque of 0.120 N.m slows it to a stop in 22.5s . What is the moment of inertia of the fan?
An electric fan is turned off, and its angular velocity decreases uniformly from 510 rev/min to 150 rev/minin a time interval of length 4.15 s . Part A Find the angular acceleration α in revolutions per second per second. Part B Find the number of revolutions made by the fan blades during the time that they are slowing down in Part A. Part C How many more seconds are required for the fan to come to rest if the angular...
The blades of a fan running at low speed turn at 240rpm . When the fan is switched to high speed, the rotation rate increases uniformly to 340rpm in 5.75s . What is the magnitude of the angular acceleration of the blades? (rad/s^2) How many revolutions do the blades go through while the fan is accelerating? (rev)
When a ceiling fan rotating with an angular speed of 3.00 rad/s is turned off, a frictional torque of 0.100 N?mslows it to a stop in 24.5 s . What is the moment of inertia of the fan?
A ceiling fan with 80-cm-diameter blades is turning at 60 rpm.Suppose the fan coasts to a stop 25s after being turned off. a.) What is the speed of the trip of a blade 10 s after the fan is turned off? b.) Through how many revolutions does the fan turn while stopping?
When a ceiling fan rotating with an angular speed of 3.46 rad/s is turned off, a frictional torque of 0.155 N⋅m slows it to a stop in 31.4 s. What is the moment of inertia of the fan?
5. When a fan is turned off. its anonlar sneed decreases from 15 rad/s to 6.7 rad/s in 5.0 s. What is the magnitude of the average angular acceleration of the fan?
When the power is turned off on a turntable spinning at 65.0 rpm , you find that it takes 11.3 revolutions for it to stop while slowing down at a uniform rate. What is the angular acceleration (in rad/s2), of this turntable? How long does it take to stop after the power is turned off?
4. An electric fan shuts off and its angular velocity decreases uniformly from 500 rev/min to 200 rev/ min in 4.00 seconds. (a)Calculate the angular acceleration, in rad/s^2, assuming that it is constant, in rev/s^2. (b)Calculate the time it takes you to come to a complete stop.