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A potter's wheel of radius 0.21 meter is turned on at t = 0 and accelerates uniformly. After 89 second, the wheel has an angular velocity of 2.3 rad/s. Obtain the angular acceleration and the total angular displacement of the wheel during this time. rad/s2
rad
A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. This causes the machine to slide backward 1.122 meters before coming to a rest. What is the machine's velocity
How much does it cost to cook food in a 12,000 W oven for 47.6 minutes? Assume electricity costs 8.0 cents per kW·h
A block of glass with n= 1.66 is submerged in liquid. For a ray striking the glass with incidence angle 33.0 degrees , What is the index of refraction of the liquid
Ferris wheel has radius 5.0 and makes one revolution in 8.0 seconds. What is the apparent weight (the the normal force exerted on her by the bench) of the person
A driver applies a horizontal force of 20 N (to the right) to the top of a steering wheel. Calculate the angular acceleration of the steering wheel about the central axis
A plank 2.00 cm thick and 17.5 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of the wood
A 10 kg block of ice slides along a frictionless surface that is inclined at a 60 degree angle with the horizontal. What is the weight of the block
A machine does work at a rate given by Pct^2 , where c = 15W/s^2 and t is time. Find the work done by the machine between 15s and 20s? huh
A 2.70 kg box slides down a rough incline plane from a height h of 1.87 m. Calculate the mechanical energy lost due to friction
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 4.0 m/s, and an 83 kg p..
question 1 a 0.49 copper rod with a mass of 0.18 carries a current of 13 in the positive x direction. let upward be the
Two automobiles, each of mass 1000 kg, are moving at the same speed, 21 m/s, when they have an inelastic collision. In what direction and at what speed does the wreckage move if one car was driving north and one east?
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