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Light of wavelength 624 nm is incident perpendicularly on a soap film suspended in air. Assume the soap film has n = 1.33. What are the smallest two thicknesses of the film for which reflections from the film undergo fully constructive interference?
A football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick.
A satellite of the Earth has a mass of100kg and is at an altitude of1.00multiplied by106m. What force does the satellite exert on the Earth
A man pulls a crate of mass 75.0 kg across a level floor. He pulls with a force of 180.0 N at an angle of 26.0° above the horizontal. When the crate is moving, the frictional force between the floor and the crate has a magnitude of 130.0 N. If the cr..
A point charge is a = 1.5 m below the end of a continuously charged rod with charge Q = 5 ?C, Write an expression for the differential element of the y component of the Electric Field at P in terms of the charge density
Suppose a pion is moving at a speed of 0.986c, and an observer who is stationary in a laboratory measures the pion's lifetime to be2.7 × 10-8 s. What is the lifetime according to a hypothetical person who is riding along with the pion
Nitrogen gas is heated by a pulsed laser to 50 000 K. If the diameter of the nitrogen atoms is assumed to be 1.0 ´ 10-10 m, what is the mean free path
Two identical +45.3 nC point charges A and B, with masses of 3.0*10^-9 kg each, are fixed in place with a distance of 2.54 cm between them. Calculate the speed of charge B when it has reached a distance of 3.68 cm away from charge A
How much work is done by a 86.5 kg man running up a flight of stairs 20.0m long in 4.25 seconds, how much power does the man exert while running
A current with sinusoidal time-dependence, whose peak value is 9.55 A and frequency is 255 cycles per second, Calculate the average power dissipated by the loop
transverse waves with a speed of 59.0 ms are to be produced on a stretched string. a 4.95-m length of string with a
Light shines through a single slit whose width is 5.6 104 m. A diffraction pattern is formed on a flat screen located 4.0 m away. What is the wavelength of the light
A certain solid-propellant model rocket engine releases a total of 6000 J of energy as it burns. what fraction of the chemical energy released by the engine
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