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A 0.25 kg disk shaped machine part with a radius of8.0 cm rotates eccentrically (off center) about an axis thatis normal to its flat surface and that is located two-thirds of thedistance from the center to the circumference.
(a) What torque is required to rotate the part aboutthis off-center axis with an angular acceleration of2.8 rad/s2?
(b) How much greater is this torque than the torque required to rotate the part with the same angular acceleration about a parallel axis through the center?
An alert physics student stands beside the tracks as a train rolls slowly past. calculate the speed of the train
A gas with initial conditions (P,V,T)i expands isothermally until the final volume=8.192 times the initial volume, find the ratio of the final pressure to the intial pressure
Two narrow slits 3 mm apart are illuminated with light from a sodium lamp (lamda = 589 nm), What is the thickness of this glass
Suppose that a block is pulled at a constant velocity with a constant force in the presence of sliding friction. What is the net force on the block while it is moving at a constant velocity from point a to point b
q1. suppose a constant ratio of 13.60 counts per minute per gram of living matter. a sample of a petrified tree was
basic math in real world applications1. describe a real-world problem you have encountered in either your personal or
A 1.0-kg ball has a velocity of 12 m/s downward just before it strikes the ground and bounces up with a velocity of 12 m/s upward. What is the change in momentum of the ball
An iron tower in is 399 meters tall on a cold day (T = -6.7 degrees Celsius). What is its height of the tower on a hot day while the temperature is 31.5 degrees Celsius.
A child holds a candy bar 10.0 cm in front of a convex mirror and notices that the image is only one-half the size of the candybar. What is the radius of curvature of the mirror?
Calculate the efficiency of a fossil-fuel power plant that consumes 450 metric tons of coal each hour to produce useful work at the rate of 900 MW
A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. What is the index of refraction of the unknown liquid
(a) In what direction are the electrons deflected? toward the negative plate toward the positive plate (b) By how much are the electrons deflected after passing through these plates?
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