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If a visible photon with wavelength 434 nm is emitted from an atom in a hydrogen gas lamp, what energy state was the atom in before the photon was emitted? That is, what was the number for that state?
use the laws of classical mechanics to solve this problem. an atom of mass m moves in positive x direction with speed
A sound wave in air has a frequency of 264Hz and travels with a speed of 347m/s. How far apart are the wave crests
Consider the following pipe assembly containing a permeable filter of length L=20cm, area A=20cm^2, and permeability of 4 millidarcys. what is the velocity of the flow through the filter section
A 4.3 kg rock is initially at rest at the top of a cliff. Assume that the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water. The specific heat of water is 4186 J/kg·?
question114g of nitrogen gas at stp are adiabatically compressed to a pressure of 20atm. what are?a final temperatureb
A transverse harmonic wave travels on a rope according to the following expression: y(x,t) = 0.17sin(2.0x + 17.5t), What is the average speed of the rope during one complete oscillation of the rope
q1 a pole-vaulter of mass 58.4 kg vaults to a height of 5.77 m before dropping to thick padding placed below to cushion
A particular motor can provide a maximum of 110.0 N • m of torque. Assuming that all of this torque is used to accelerate a solid, What angle will it rotate through to do this
A 625 kg woman climbs a staircase that rises at 48 degrees above the horizontal and is 4.25 m long. How much work has gravity done on her as she climbed the stairs
A baseball player loosening up his arm before a game tosses a 0.149-kg baseball, Find the constant angular acceleration of the arm and ball
A mass of 0.25 kg is attached to a horizontal spring with a spring constant of 4.0 N/m. Write an expression for the position of the mass as a function of time
A conducting sphere that carries a total charge of +11 µC is placed at the center of a conducting spherical shell that also carries a total charge of +11 µC, Determine the charge on the inner surface of the shell
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