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A double-slit experiment is performed with light of wavelength 600 nm. The bright interference fringes are spaced 1.54 mm apart on the viewing screen. What will the fringe spacing be if the light is changed to a wavelength of 460 nm?
A charge of q = +7.22 ?C is located in an electric field. The x and y components of the electric field at this point are Ex = 6.48E+3 N/C, What is the magnitude of the force on the charge
The work function of a certain metal is ? = 3.05 eV. Determine the minimum frequency of light f0 for which photoelectrons are emitted from the metal. (Planck's constant is: h = 4.1357×10-15 eVs.)
A driver travels northbound on a highway at a speed of 26.0 m/s. What frequency does the driver observe asthe police car approaches
Three non-interacting particles are in their ground state inan infinite square well; see the figure above. what happens when amagnetic field is turned on which interacts with the spins of theparticles? Draw the new levels and particles (with spin).
An apparatus similar to the one used in lab uses an oscillating motor at one end to vibrate a long rope with frequency f = 40 Hz and amplitude A = 0.25 m. The rope is held at constant tension by hanging a mass on the other end.
A 75 kg horizintal plank is suppirted at each end. a 126kg giant panda is resting a quarter of tge way from the left end. what is the verticle force being exerted on the left support?
Freud believed that certain troubling symptoms might be traced to painful unconscious memories. This led him to suspect that these symptoms resulted from.
A highway curve has a radius of 128 m. At what angle should the road be banked so that a car traveling at 27.2 m/s has no tendency to skid sideways on the road
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 3781 kg), which is made of steel (? = 7850 kg/m3). In typical comic-book fashion, they decide to raise the yacht (which is now on the bottom of a lake) by filling it with ping-p..
A spring with spring constant 13 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 8.5cm and free. The ball makes 26 oscillations in 18 s seconds.
You are practicing throwing darts in your dorm. You stand 2.89 m from the wall on which the board hangs. Calculate the speed of the dart when it hits the board
Two infinitely large plates are arranged so that they are parrallel, and seperated by a distance d. What is the approximate electric field outside the plates
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