A power drill starts from rest and undergoes uniform angular acceleration for a period of 0.160 s until it turns at a rate of 2.90 ✕ 104 rev/min. What is the drill's angular acceleration (in rad/s2)? (Enter the magnitude.) ______________rad/s2 What is the angle (in radians) through which the drill rotates during this period? (Enter the magnitude.) ______________rad

A ceiling fan with 100.0 cm diameter blades is turning at 55.0 rpm. Suppose the fan coasts to a stop 35.0 seconds after being turned off. Assuming the fan is slowing down at a constant rate, what is the angular acceleration (in rad/s/s) of the fan? Submit Answer Tries 0/10 What is the fan's angular velocity (in rad/s) 20 seconds after being turned off? Submit Answer Tries 0/10 What is the speed of the tip of the blade (in m/s) 20 seconds after being turned off? Submit Answer Tries 0/10 Through how many revolutions does the fan turn while stopping? Submit Answer Tries 0/10

18 of 25 During the spin cycle of your clothes washer, the tub rotates at a steady angular velocity of 38.3 rad/s. Find the angular displacement A0 of the tub during a spin of 81.7 s, expressed both in radians and in revolutions. rad AO = revolutions AO =

Up Left Right Down A spinning disk is rotating at a rate of 4 rad/s in the counterclockwise direction as shown in the figure. If the disk is speeding up at a rate of 4 rad/s2, what is the direction of the angular acceleration vector? right down re 1 left hen up

Crank OA is rotating at a counterclockwise angular rate of 9.4 rad/s, and this rate is decreasing at 4.3 rad/s². Determine the angular acceleration AB of link AB for the position shown. The angular acceleration AB is positive if counterclockwise, negative if clockwise. 100 mm 9.4 rad/s 85 mm Answer: CAB= 38° G AB=210 mm B rad/s²

A wheel is turning at 55 rad/s, and is slowing due to friction at a rate of -1.7 rad/s^2. a.) how long will the wheel turn before coming to rest?____ s (2 significant figures-round to the ones place) b.) how far will the wheel turn before coming to rest? ____radians (2 significant figures- round to the tens place)

A disk with a radius of 4.01 meters is rotating with an angular speed of 8.01 rad/s. The angular speed increases to 12.01 rad/s over the next 4.01 seconds. Determine how many revolutions the disk rotates through in 4.01 seconds?

Problem 1: A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. The small wheel has a radius of 6.5 cm and accelerates at the rate of 7.5 rad/s2 , and it is in contact with the pottery wheel (radius 24.0 cm ) without slipping. Part A Calculate the angular acceleration of the pottery wheel.   Part B Calculate the time it takes the pottery wheel to reach its required speed of 70 rpm .

A dentist's drill starts from rest. After 3.50 s of constant angular acceleration, it turns at a rate of 2.49 104 rev/min. (a) Find the drill's angular acceleration.__________rad/s2 (along the axis of rotation)(b) Determine the angle through which the drill rotates during this period.__________rad