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An electron makes a transistion from the third energy level to the lowest energy level in a box of width .1nm. What is the wavelength of the emitted photon? Compare this wavelength associated with the transition from the third level to the ground state level hydrogen. (The ground state energy of hydrogen is -13.6 eV.)
An illusionist causes a valuable piece of jewelry apparently to disappear by dropping it in a pool of water directly under the center of a circular platform floating on the surface. Find the minimum diameter of the platform that would prevent the ..
a hollow metal sphere has inner and outer radii of 7 cm and 10 cm radii. a point charge is located at the center is
what is the difference between the energy stored in a spring that is stretched 0.40 m and the energy stored in the same spring when it is stretched 0.20 m?
What about the scheme itself: is it a good idea? Should you buy stock in this company?
A ray in air is incident on a glass plate whose index of refraction is 1.42, the angle of incidence is 30°. What is the angle of refraction
A 5.00 kg box is being pushed up a 30.0 degree incline. The box moves at a constant velocity, and the coefficient of kinetic friction between the box and ramp is 0.300. what is its magnitude
At one instant, a mass (m = 2 kg) is at the location m and attached to one end of a spring with a spring constant ks = 60 N/m and a relaxed length L0 = 0.22 m. The origin is placed where the other end of the spring attaches to the ceiling.
q1. a ball in flight is recorded and analyzed using digital video analysis software. the analysis produced the result
Assume you start an antique car by exerting a force of 285 Newton on its crank for 0.185 second. Find what angular momentum is given to the engine
An 39-turn circular coil of radius 22.1 cm carries a current of 3.37 A. What is the strength of the magnetic field
A block of wood of mass m1 = 1.00 kg slides to the right on a frictionless horizontal table with a speed of 30.00 m/s. How much is the spring compressed by the wood
Compute the period of a 0.123-nmX-ray. An object is placed halfway among a concave mirror and its focal point. Discover the resulting magnification. A 3-cm-tall object is located 8 cm in front of a concave mirror that has a 20-cm radius of curvature...
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