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An object sits on a wheel 0.30 m from its axle. The wheel's rotational speed decreases from 4.0 rad/s to 2.0 rad/s in 5.0 s. Determine
(a) the wheel's average rotational acceleration,
(b) the angle through which the object turns during the 5.0 s, and
(c) the distance traveled by the object dur-ing that time interval.
During the spin-dry cycle of a washing machine, the motor speeds up from 30 rad/s to 95 rad/s, What is the magnitude of the angular acceleration of the motor
a grindstone has a radius of 6.00 cm and rotates at 7000 rpm. What is the linear speed of a point on its edge
An elevator ascends with an upward acceleration of a. At the instant its upward speed is v, find the time of flight of the bolt from ceiling to floor
write an expression for the induced emf in terms of the magnetic field, the legth of the rod, the maximum velocity of the rod, the displacement of the rod, and the maximum displacement of the rod
A golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. find the magnitude of the initial velocity
The radius of the hydrogen atom is 0.053 nm. find the Coulomb force between the electron and the proton in the atom
In a Compton collision, if the wavelength of the photon is 1.00 pm, what is the speed of the scattered electron
A solid homogeneous sphere of mass M = 3.20 kg is released from rest at the top of an incline of height H=1.57 m, Determine the rotational kinetic energy of the sphere at the bottom of the incline
A train horn is heard at a 50 dB level by an observer 10 km away. What is the average power generated by the horn
A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, What is the distance between the charges
A 73 kg parachutist descends during a vertical height of 420 m with constant speed. Find the increase in entropy produced by the parachutist; assume the air temperature is 21°C.
What is coefficient of friction between chair and floor
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