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What is the energy of the photon that, when absorbed by a hydrogen atom, could cause the following?
(a) an electronic transition from the n = 2 state to the n = 4 state____eV
(b) an electronic transition from the n = 4 state to the n = 7 state____eV
A particular ideal solenoid has 1200 turns/m, a radius of 10 cm, and a current of 4.0 A. What is the maximum speed the electron can have if it is not run into the side of the solenoid
A total of 3.04 106 electrons are placed on an initially uncharged wire of length 1.23 m. find the magnitude of the acceleration of a proton
A 2.00-g charged particle is released from rest in a region that has a uniform electric field vector E = (580 N/C) i hat. Determine the charge of the particle
A penny is located at the outer edge of a disk (radius = 0.129 meter) that rotates about an axis perpendicular to the plane of the disk at its center. Obtain the minimum coefficient of friction necessary to allow the penny to rotate along with the ..
When you push a 1.77 kg book resting on a tabletop, it takes 2.29 N to start the book sliding. Once it is sliding, but, it only takes 1.45 N to keep the book moving with a constant speed. What is the coefficient of static friction among the book and ..
A non uniform beam has a mass 5 kg and a length of 10m. How far is the center of mass of the beam from the left end
What is the car's maximum speed on an incline of 1 in 20 (ie, if theta is the angle of the incline with the horizontal, sin = 1/20)? Illustrate what is its power output on a 1-in-10 incline if the car is traveling at 10 m/s?
The electric field between the plates of a parallel-plate capacitor is horizontal, uniform, and has a magnitude E. Evaluate what is the mass of the object
A positively charged particle of mass 6.20 10-8 kg is traveling due east with a speed of 30 m/s and enters a 0.41 T uniform magnetic field. What is the magnitude of the charge of the particle
An alpha particle approaches a 197 AU nucleus with a speed of1.5x10^7 m/s. In what direction does the nucleus recoil, and with what speed
A spherical capacitor of inner radius 10 cm stores 10nC of charge when charged with 10V. Find s capacitance, its outer radius and the volume between the two spheres
Suppose that a 70 kg skydiver in free fall has reached terminal velocity and is falling at a speed of 33 m/s. What is the power the skydiver supplies to the air to heat it up as the skydiver falls
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