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An electron is trapped in a 1-dimensional box that is 401 nm wide. Initially, it is in the n = 4 energy level, but after a photon is absorbed the electron is in the n = 7 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.
usha and ritu are two sisters. usha wants to explain some technologies to ritu. initially ritu did not show any
Find the speed of mass m1 before the collision. Find the speed of mass m1 and m2 after the collision. Find the relative change of kinetic energy during the collision (DK/Ki).
Two tiny conducting spheres are identical and carry charges of -21.4C and +51.0C. They are separated by a distance of 3.30 cm. (a) What is the magnitude of the force that each sphere experiences?
A glass lens has a convex surface with radius 25.0 cm and a concave surface with a radius of 50.0 cm. The glass has index of refraction of 1.51. Calculate the focal length of this lens
An inclined plane has a height of 0.383 and is 120 cm long. What is the KE energy at the end of the ramp
For charging process, the voltage across the capacitor as a function of time is given by Vc = ε[1-exp(-t/τ)]. When the time is twice the time constant, find what percentage of the maximum voltage is on the capacitor
a flute player tunes her instrument when the air and the flute is cold. as she plays the flute and the air inside it
A small block of mass 1.14 kg slides without friction on a horizontal table. find the torque placed on the mass by the string
Monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 3.00 m away. what is the distance between the two second-order maxima
A sky diver (m = 58.0 kg) jumps out of an airplane at 20,000 feet and has a v2 drag coefficient of D = 0.26 kg/m. Find the terminal velocity for this diver in air
A barrel contains a 0.110m layer of oil of density 700kg/m^3 floating on water that is 0.210m deep. What is the gauge pressure at the bottom of the barrel?
the typical magnetic field at the surface of the earth at the equator is 0.3 gauss 1 gauss 10-4t. assuming that the
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