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An electron is trapped in a 1-dimensional box that is 601 nm wide Initially, it is in the n = 2 energy level, but after a photon is absorbed the electron is in the n = 8 energy level. What was the wavelength of the absorbed photon?
Eventually, the electron ends up in the ground state. As it does so, one or more photons are emitted during those transitions Find the wavelengths of the least energetic and most energetic photons that might be emitted during the all the possible transitions to the ground state.
You are pushing a 150-kg wooden crate in a straight line a distance of 4.5 m across a wooden floor. The crate is speeding up at 0.22 m/s2. What is the work done by friction on the crate
A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. To what maximum height will it rise after leaving the ramp
In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 41 N to the input piston, determine the force that the output plunger applies to the car
Two diamonds begin a free fall from rest from the same height, 1.1 s apart. How long after the first diamond begins to fall will the two diamonds be 18 m apart?
A small ball with mass m is attached to a string, which goes over a pulley and makes a small angle swing. Derive the period of this simple pendulum
You hold a spherical salad bowl 80cm in front of your face with the bottom of the bowl facing you. What is the orientation is it erect or inverted
A cannonball is fired from a canon at an angle of 30 degrees to the horizontal.The cannonball's initial velocity is 40 m/s. What is the greatest height the cannonball will attain
A horizontal laser beam of wavelength 632.8 nm has a circular cross section 2.00 mm in diameter. Find the required width of the aperture
suppose the length L of the uniform bar is 3.00 m and its weight is 230 N. Also, let the block's weight W = 350 N and angle ? = 30°. find the maximum possible distance x before the wire breaks
A 180 g copper bowl contains 190 g of water, both at 19.0°C. What is the original temperature of the cylinder
A neutron star has a mass of 2.20 × 10^30 kg (about the mass of our sun) and a radius of 5.20 × 10^3 m. Assume an object falls from rest near the surface of such a star. How fast would it be moving after it had fallen a distance of 0.0083 m.
A meter stick is rotated about the end labelled 0.00 cm, therefore that the other end of the stick moves through an arc length of 8.66cm. During what arc length s does the 25.0-cm mark on the stick move?
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