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A uniform thin rod of length L=2.5 m and mass 2 kg can rotate in a horizontal plane about a vertical axis through its center. The rod is at rest when a 0.3 kg ball of putty, moving in the horizontal plane of the rod, hits and sticks to one end. As viewed from above, the ball's velocity vector makes an angle of ? =70° with the rod. If the ball's speed just before impact is 100 m/s, what is the angular velocity of the rod immediately after the collision?
An outfielder throws a baseball to his catcher in an attempt to throw out a runner at home plate. The ball bounces once before reaching the catcher.
An investigator collects a sample of a radioactive isotope with an activity of 4.4×105Bq . 72hourslater, the activity is 1.2×105Bq. What is the half-life of the sample
A two-ended "rocket" that is at first stationary on a frictionless floor, with its center an origin of an x axis.
question1a planet of mass 8 times 1024 kg is at location lsaquo minus3 times 1011 6 times 1011 0 rsaquo m. a star of
A light bulb is wired in series with a 131-? resistor, and they are connected across a 120-V source. What are the two possible resistances of the light bulb
The armature of an arc generator has 200 turns. Each turn is a rectangular loop with a cross section area of 0.02m^2. What is the magnetic field strength
You run a speech perception experiment comparing apples (n = 50) and oranges (n = 50). Calculate the similarity between the two categories
An audio amplifier provides an alternating rms potential difference of 15.0V. A loudspeaker connected to the amplifier has a resistance of 10.4 ohm. what is the rms current in the speaker
Write down an equation for the radial component
A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 13.0 m/s, What is his final velocity
A particle has a charge of +2.3 ?C and moves from point A to point B, a distance of 0.13 m. The particle experiences a constant electric force, and its motion is along the line of action of the force.
A sheet of glass is coated with a 495-nm-thick layer of oil (n = 1.42), What is the color of reflected light and What is the color of the most part of transmitted light
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