2. The blades of a fan running at low speed turn at 250 rpm. When the fan is switched to high speed, the rotation rate increases uniformly to 440 rpm in 5.85 s. What is the angular displacement of the blades during that time interval?

Q: 2. A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.00 rev/s in…

A: Conversion unit: 1 rev/s=6.28 rad/s as diameter is given as 12 cm so its radius would be 6 cm or…

Q: An object moves uniformly around a circular path of radius 21.0 cm, making one complete revolution…

A: Given, R = 21cm T = 2.05s a). Transitional speed (v)= 2πR/T = 2π(21)/2.05 v = 64.36433729 cm/s

Q: 3. The Earth moves in an almost perfectly uniform circular orbit with the Sun at its center, 1.5 ×…

A: Radius of the orbit is given to be R=1.5*108km=1.5*1011m, Mass of the sun is around M=2*1030kg and…

Q: A car tire is 61.0 cm in diameter. The car is traveling at a speed of 24.0 m/s. What is the tire's…

A:

Q: An object moves uniformly around a circular path of radius 22.0 cm, making one complete revolution…

A: Given that: Radius of circular path, r = 22 cm=0.22 m One revolution complete, t = 2.2 sec

Q: 1. The hour, minute and second hands on a clock are 0.25m, 0.30m and 0.35m long respectively. What…

A: Given 1. Length of hour hand = 0.25 m Length of minute hand = 0.30 m Length of second hand = 0.35 m…

Q: A bicycle wheel has a radius r = 0.28 m and rotates at a constant frequency of f = 89 rev/min.…

A: The period of rotation of the wheel is

Q: 8. What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel…

A: Acceleration is, a=ω2r=ω2d2

Q: A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is the…

A:

Q: 1. A wheel with the diameter 2 cm is rotating in such a way that the time dependence of its rotation…

A: The rate of change of angular velocity is called angular acceleration.  The rate of change of…

Q: The angular position of a windmill changes with time as 4.19 t^2 (t^2 means t squared.) The windmill…

A: It is given that the angular position is θ=4.19t2 The angular velocity is given by ω=dθdt…

Q: 4. An electric motor rotating a grinding wheel at 150 rev/min is switched off. Assuming constant…

A: In case of linear motion of any object with constant acceleration, if we know the initial velocity…

Q: 11. An artificial satellite in a low orbit circles the Earth every 95 minutes consistently. a) How…

A: Given: The time taken by satellite is T=95 min.   (a) The expression of frequency is given by,…

Q: 16. Two pulleys are attached by a belt. The larger pully has a radius of 6 cm while the smaller…

A: Given: Find the angular speed of each pully.

Q: A small rubber wheel is used to drive a large pottery wheel, and they are mounted, so that their…

A:

Q: 41. An electric fan rotates 100 times in 50 s. If the blength of its wing from its axis of rotation…

A: Given, An electric fan rotates, N=100 times The length of wings from the axis of rotation is, r= 0.5…

Q: 11. A disk of mass M and diameter D is spinning at a frequency f.       a.) How much friction force…

A: (a) Angular acceleration of the disc

Q: A 3.5 Kg disk with 42cm diameter is spinning in a cw direction at 450rpm when the following forces…

A:

Q: 3. An ant crawls onto an old record. When the ant is 6.0 cm from the center of the record, it begins…

A: Given data: The distance of ant from the center. i.e. radius of the ant's circular orbit is, r = 6…

Q: An object moves uniformly around a circular path of radius 23.5 cm, making one complete revolution…

A: Given data The radius of the circular path is r = 23.5 cm = 0.235 m The time taken to complete one…

Q: An automobile engine slows down from 3800 rpmrpm to 1400 rpmrpm in 2.0 s A)Calculate its angular…

A:

Q: (II) A 61-cm-diameter wheel accelerates uniformly about itscenter from 120 rpm to 280 rpm in 4.0 s.…

A: The diameter of the wheel,   The radius of the wheel,

Q: An electric motor rotating a workshop grinding wheel at a rate of 117 rev/min is switched off.…

A: a) The expression for find time taken for the grinding wheel to stop is t=ωf-ωia Substitute values…

Q: 1. A drum rotates around its central axis at an angular velocity of 12.60 rad/s. If the drum then…

A: Apologies. We only answer one question at a time. we will answer the first one as the exact one…

Q: A shaft turning at 750rad/s slows to a stop in 6.55 seconds. What is the angular displacement the…

A: The angular acceleration is given by, α=ω-ω0t Here, ω is the final angular speed, ω0 is the initial…

Q: Its arms are 3 m long and its center sits 12 m above the ground. A caterpillar clinging to the edge…

A: Given Spin rate =15 rpm Arm length of windmill = 3 m Height of center sits from ground =12 m

Q: What is the angular displacement of the wheel after 5 seconds?

A: Given  Diameter = 0.5 meter =d  Velocity = v= 5m/s  Acceleration = 0.55 rev/s²  Angular displacement…

Q: A phonograph record accelerates from rest to 33.0 rpm in 4.53 s. How many revolutions does it go…

A: It is given that

Q: 1. An object is attached to a 1-m string and completes 5 rotations in 1 second. Find the (a)…

A: 1) Given, an object is attached to a 1-m string (radius r = 1 m) completes 5 rotations in 1 second.…

Q: A car has tires with an 85cm diameter. If the tires are rotating at 2.4 rotations per second, how…

A: The angular speed of the car in rad/s is, ω=2.4 rotations per second×2π rad1 rotation=4.8π rad/s The…

Q: 8. A drum rotates around its central axis at an angular velocity of 12.0 rad/s. If the drum speeds…

A: Given: Initial angular velocity, ω0 = 12 rad / s , at time t = 0. Final angular velocity, ω = 18.4…

Q: The right-angle bar rotates clockwise with an angular velocity which is decreasing at the rate of 4…

A: From right hand rule, z axis point out of the screen angular velocity,ω=-2 rads kangular…

Q: 1 A high speed drill reaches 2000 rpm in 0.5 s. What is the drill's angular acceleration? How many…

A:

Q: Suppose a disk rotates at constant angular velocity. (a) Does a point on the rim have radial and or…

A: Part a) The disk rotates at a constant angular velocity so there will be no radial or tangential…

Q: A CD rotating at angle initial angle rev / min 40, it took sec 20 to stop, how many turns did it…

A: Angular acceleration

Q: 1. The velocity of a rotating disk is independent of a point's position on the disk. a. True b.…

A: velocity and angular velocity of rotating disk is independent of a point's position on the disk=??

Q: 8. A drum rotates around its central axis at an angular velocity of 12.0 rad/s. If the drum speeds…

A:

Q: A fan is rotating at a constant 360.0 rev/min. What is the magnitude of the acceleration of a point…

A: Given: Speed of the fan, N = 360 rpm. Distance of the point from the center of the fan, r = 10 cm =…

Q: 7) What is the final speed of a point on the disk half-way between the center of the disk and the…

A:

Q: 2) A bicycle wheel is rotating at 18 rad/s. The person is pedaling such that the wheel is…

A: Write the given values with the suitable variables. ω0=18 rad/sα=4 rad/s2v=20 m/sr=27…

Q: 4. (I) The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during…

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.