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A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of 0.85 eV makes a transition to a state with an excitation energy (the difference between the energy of the state and that of the ground state) of 10.2 eV.
(a) Determine the energy of the photon emitted as a result of the transition?
You are coating a glass lens of index of refraction 1.6 with a film of material of index of refraction 1.7. What is the thickness of the film now
A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. what impulse did he imply on the ball
The potential difference between two short sections of parallel wires in air is 104 V, What is the capacitance of the two wires
A uniform ladder of mass 50 kg and length 5m leans at an angle Theta against a frictionless wall. determine the minimum angle the ladder will not slip
the solar wind is a thin hot gas given off by the sun. charged particles in this gas enter the magnetic field of the
Draw two diagrams for the situation where a moving train (with initial speed v0) collides elastically with a target train that is not intially moving, Show that the final velocity of each train will be:
A 62.0 kg bungee jumper jumbs from a brigde. She is tied to a bungee cord whose unstretched length is 12.0 m, and falls a total of 31.0 m. Calcule the spring constant k of the bungee cord
A very small object carrying -3 x 10-6 C of charge is attracted to a large, How much Kinetic Engergy does the negatively charged object gain
a flow of water travels through a large pipe. in the water are pellets of plastic which float to the top and smaller
A rightward force of 15 N is applied 35 degrees above the horizontal to a 6 kg box to move it across a rough surface. Calculate the acceleration of the object
There are two horizontal forces on the 2.0 kg box in the overhead view of the figure below but only one is shown. find the second force.
A skateboarder, with an initial speed of 2.0 m/s, rolls virtually friction free down a straight incline of length 18m in 3.3s. At what angle is the incline oriented above the horizontal
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