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An electron in the 3rd stationary state around a hydrogen atom has an energy value of -1.512 eV. What will the electron's energy be if the hydrogen atom absorbs a photon with a wavelength of 1090 nm?
If each rock strikes the fixture traveling at 10.0 {rm m}/{rm s} horizontally and rebounds at 2.00 {rm m}/{rm s} backwards, find out how high above the lowest point does the impact make your light fixture swing?
Bens GTI starts from rest and has a mass of 3000 kg and accelerates to a velocity of 28 m/s in 9.0s. Assume that the air resistance remains constant at 200N. What is the power developed by the GTI during this time
A 2Kg wood block is attached to a .3 g bucket by a massless string rests on the durface of and inclined plan of 20 degrees. the coefficient of friction between the block and the inclined plane are static friction is equal to .4 and kinetic friction o..
Suppose a projectile is to be launched at 35 degrees to the horizontal, from point A, at a vertical distance of 3.3 km and a horizontal distance of 9.4 km, Calculate the initial speed required to satisfy the above conditions
A point source of light lies on the central axis of a bi-convex spherical lends who radii of curvature are both measured to be 19.4 cm. The lens is made up of glass with an index of refraction of 1.50 and the source is 3.17 meters to the left of i..
n undamped 1.47-kg horizontal spring oscillator has a spring constant of 25.1 N/m, What is the oscillator\'s total mechanical energy as it passes through a position that is 0.651 of the amplitude
Two people carry a heavy electric motor by placing it on a light board 2.70m long. One person lifts at one end with a force of 380N, Where is its center of gravity located
When two identical ions are separated by a distance of 8.3x10^-10m and the electrostatic force each exerts on the other is 5.3x10^-9N How many electrons are missing from each ion
A hill that has a 25.7% grade is one that rises 25.7 m, At what angle is such a hill inclined above the horizontal
You have been put in the basement of a building from which you can escape only by riding up to the ground floor on a coin operated elevator that requires $2.
an alien pilot of an intergalactic spaceship on a mission to measure the sizes of galaxies is traveling at 0.86c
Find out the magnitude and direction of forces
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