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A sphere of radius 20 cm and mass 1.8 kg starts fromrest and rolls without slipping down a 30 deg incline that is 10 mlong.
a) Calculate its translational speed when it reaches the bottom?
in m/s
b) Calculate its rotational speed when it reaches the bottom?
in rad/s
c) What is the ratio of translational to rotational KE at the bottom?
An early model of the atom, proposed by Rutherford after his discovery of the atomic nucleus, had a positive point charge, What is the electric field at the surface of the atom
A space probe is traveling in outer space with a momentum that has a magnitude of 4.94 x 107 kg·m/s. Determine the momentum of the probe after the retrorocket ceases to fire
To complete your master's degree in physics, your advisor has you design a small, linear accelerator capable of emitting protons, What the average power must be delivered to the stream of protons
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
A turntable rotates with a constant angular acceleration 2.20rad/s^2. What was the angular velocity of the wheel at the beginning of the time interval 4.40s
iron atoms have been detected in the sun's outer atmosphere, some with many of their electrons stripped away. What is the net electric charge(in coulombs) of an iron atom with 26 protons and 7 electrons? Be sure to include the algebraic sign (+ or..
When the heart pumps blood into the aorta, the pressure gradient-the difference between the blood pressure inside the heart and the blood pressure in the artery-is an important diagnostic measurement. What is the speed of the blood in the aorta
two point charges, seperated by 1.5 cm have charge values of +2.0, What is the value of the mutual force between them
A cork on the surface of a pond bobs up and down two times per second on ripples having a wavelength of 8.80 cm. If the cork is 13.5 m from shore, how long does it take a ripple passing the cork to reach the shore?
You have a 250-? resistor and a 0.410-H inductor. Suppose you take the resistor and inductor and make a series circuit with a voltage source that has a voltage amplitude of 30.0V, What is the voltage amplitudes across the inductor
A bedroom bureau with a mass of 40 kg, including drawers and clothing, rests on the horizontal floor. What is the static friction force on the bureau initially
Current & magnetic induction in the electrical circuits.
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