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Question: A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6 m. Could the electron make a transition from the ground state to a higher energy level?
A lamp hangs vertically from a cord in a descending elevator with a constant deceleration a. If the tension in the cord is T0, answer the following, What is the lamp's mass
the plane of a 5.0 cm x 8.0 cm rectangular loop of wire is parallel to a 0.19-t magnetic field. the loop carries a
A 20.0-kg uniform plank is supported by the floor at one end and by a vertical rope at the other, find the magnitude of the force that the floor exerts on the plank
A plane has an airspeed of 142m/s. A 16.0m/s wind is blowing soutward at the same time as te plane is flying. what is the magnitude of that velocity
Find the average force on the driver if the deceleration is accomplished gradually by the application of brakes over a 10.6 s interval
Explain the difference between a fluorescence emission spectrum and a fluorescence excitation spectrum, What is the force constant for the CO bond
a 25.0 mH inductor is in an AC-circuit with a 150 V ac-source which operates at 60.0Hz. find the inductive reactance
In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 11.72 m to a store. At what angle is the escalator inclined above the horizontal
The magnetic force exerted on a 1.3 -m segment of straight wire is 1.6 N. The wire carries a current of 3.1 A in a region with a constant magnetic field of 0.52 T. What is the angle between the wire and the magnetic field?
The mass of Mars, 6.40e23 kg, is about one-tenth of that of the Earth, and it's radius, 3395km, is about half of the earth. What is the mean density of Mars
A 3kg and 2kg cart approach each other on a horizontal air track. they collide and stick together. what is speed of their center of mass
Suppose that a structure of arbitrary complexity has a number of forces applied to it (at various points) and yet is in static equilibrium. The principle of virtual work allows one to write an equation that relates the applied forces.
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