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A wavelength of 410.2 nm is emitted by the hydrogen atoms in a high-voltage discharge tube. What are the (a) initial and (b) final values of the quantum number n for the energy level transition that produces this wavelength?
A charge q= +5.62 micro Coulons is located at the center of a regular tetrahedron ( a four- sided surface), Find the total electric flux through the tetrahedron
An electron beam contains electrons that move along the +x-axis at 0.020c. The beam enters a region of length 1.0 m and runs parallel to a wire that carries a 0.20-A current in the +x-direction.
104.05 J of energy are transferred to a system in the form of heat while the internal energy decreases by 57.65 J. How much work is done by the system
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun. How long is a year on Mercury in units of earth years
Two forces push simultaneously a stationary 2kg box in opposite directions: F1 acts from left to right and does 150J of work on the box while F2 acts from right to left
A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 195 N/m. When t = 2.00 s, the position and velocity of the block are x = +0.129 m and v = +3.415 m/s. (a) What is the amplitude of the oscilla..
A parallel-plate capacitor with C = 13 mu or micro FF is charged so as to contain 1.1 J of energy, what is the energy density (the energy per unit volume)
a support cable runs from the top of the boom to the tractor. The angle between the support cable and the horizontal is 32°, and the angle between the boom and the horizontal is 48°.
A small piece of dust of mass m = 2.5 µg travels through an electric aircleaner in which the electric field is 447 N/C. The electric force on the dust particleis equal to the weight of the particle. What is the charge on the dustparticle?
The aurora is caused when electrons and protons, moving in the earth's magnetic field of ?5×10?5 T, collide with molecules of the atmosphere, find Radius of the electron and proton in m
At the beginning of 2013, an asteroid crashed in Russia, making for a very spectacular Youtube clip. determine the speed at which it crashed on the ground
Two charges are placed on the x axis. One of thecharges (q1 = +5.89C) is at x1 = +3.00 cm and the other(q2 = -27.0C) is at x2 = +9.00 cm. Find the netelectric field (magnitude and direction given as a plus or minussign) at (a) x = 0 cm and(b) x = +6...
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