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The flywheel of a gasoline engine is needed to give up 500 Joules of Kinetic Energy while its angular velocity decreases from 650 rev/min to 520 rev/min. Determine What moment of inertia is needed?
A thin film of glycerin (n=1.473) of thickness 524 nm with air on both sides is illuminated with white light at near normal incidence. What wavelengths will be strongly reflected
questiona place kicker must kick a football from a point 25.0 m 27.3 yd from the goal and the ball has to clear the
A 4.00 {rm A} current runs through a 12 gauge copper wire (diameter 2.05 {rm mm}) and through a light bulb. Copper has 8.5 times 10^ {28} free electrons per cubic meter.
A small spherical insulator of mass 8 x 10 kg and change +0.600 micro Coulomb is hung by a tin wire of negligible mass. A charge of -0.900 micro Coulomb is held 0.150 m away the sphere and straight to the right of it, so the wire makes the angle with..
A coil of length l=50 cm and diameter d= 5 cm consists of N= 200 turns. there is a current I= 1 A running thru the coil. Determine: a) the inductance of coil; b) the magnetic flux flowing thru a cross sectional area of the coil.
Calculate the wavelength of light in vacuum that has a frequency of 6.1 105 Hz. Calculate the energy of one photon of such light in vacuum
three seconds after automobile b passes through the intersection shown automobile a passes through the same
How fast is the shadow of the plane moving along the ground? (That is, what is the magnitude of the horizontal component of the plane's velocity?)
You are standing at x=8.0km Lightning bolt 1 at x=0km and lightning bolt 2 at x=13.0 km. If your assistant didn't see the flashes at the same time, what is the time difference between the two flashes
A simple pendulum is made of a small blob of mass m = 9.500 kg attached to the end of an inextensible wire. find the magnitude of the tension in the wire
A small piece of dust of mass m = 2.5 µg travels through an electric aircleaner in which the electric field is 447 N/C. The electric force on the dust particleis equal to the weight of the particle. What is the charge on the dustparticle?
The index of refraction for a diamond for red light of wavelength 654 nm is 2.35, Find the angle of refraction for red light
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