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A ten pound car wheel has a moment of inertia of 0.38 kg m2. While rotating at a constant speed the wheel makes 67.96 revolutions in 5.5 s. What is the wheel's rotational kinetic energy?
A critically damped simple harmonic oscillator starts at the origin at rest, and is subject to an additional force Fext = Fto/t. Find the subsequent motion
a mass m is attached to a string of length l and released when the string is horizontal, causing the mass to fall in a circular path. determine the maximum value of the tension force in the string
A water wave passing a point causes a cork to bob up and down through a total distance of 1 m, completing one cycle every 1.5 sec
A lawn mower is pushed at constant speed by a horizontl force of 10.0 lbs. determine the work done by the person
How many drops of water are in all the oceans on earth? Assume that contains 25 drops of water. Remember that this is an order-of-magnitude problem, so you should expect that you will only find rough estimates for the numbers you require.
A student constructs an astronomical telescope with a magnification of 10. what is the resulting length of the telescope
Monochromatic light of wavelength 692 nm is incident on a narrow slit. On a screen 2.81 m away, Calculate the angle of diffraction of the second minimum
The potential difference across a coil is 11V at an instant when the current through the coil is decreasing at a rate of 38A/s . What is the coil's inductance
a glass tube is attached to a water pipe,if the water pressure at the bottom of the tube is 120kpa and the local atmospheric pressure is 99kpa. determine how high the water will rise in the tube
To make a simple microscope a student places two converging lenses of +20 D at opposite ends of a 34 cm long tube. How far should an object be placed from the objective lens
A horizontal force of 80 N acts on a mass of 6 kg resting on a horizontal surface. The mass is initially at rest and covers a distance of 5 m in 0.92 s under the action of the force. find the coefficient of friction between the mass and the surface
Two infinite, parallel, uniformly charged plates with charge densities +sigma and +3sigma are separated by a distance L, what is the potential of the plate on the left
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