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Light from an argon laser strikes a diffraction grating that has 5350 grooves per centimeter. The central and first-order principal maxima are separated by 0.488 m on a wall 1.71 m from the grating. Determine the wavelength of the laser light. answer in nm
Consider two thin, ideal, conducting wires of radius a centered on r? = (?d/2,0,0) and r+ = (d/2, 0, 0), parallel to the z axis and extending to infinity. Assume that both conductors are in a vacuum.
A 5.7x10^2 kg hot-air balloon takes off from rest at the surface of the earth. The wind and lift forces take the balloon up, doing +9.7 x 10^4 J of work on the balloon in the procedure. At what height above the surface of the earth does the balloo..
Explain how would the results have differed in this experiment if the pulley and of the track was lower that the other end of the track?
A uniform electric field exists in a region between two oppositely charged plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 1.5 cm away, in a time 5.9 x 10-8 s. (a..
a ball is launched with a velocity of magnitude 6.00 m/s, at an angle of 41.0° to the horizontal. find the angle of its displacement from the launch point
An astronaut is stuck in space with no fuel for his thrusters. He is 250 m away from his ship and only has a heavy wrench in his possession. How long does it take the astronaut to reach his ship
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 6.74x10-2 kg/s. find the speed at which gasoline moves through the fuel line
A curve of radius 50 m is banked for the design speed of 100 km/h. If the coefficient of static friction is 0.60 (wet pavement), at what range of speeds can a car safely create the curve.
You are holding a bulletin board weighing 9.10 N in place against a wall while your friend secures it to the wall. How large must this force be if the coefficient of static friction with the wall is 0.39
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. Find the force acting on the electron as it revolves in a circular orbit of radius 5.35 10-11 m
A rod of length 0.850 m is attached to a pivot at one end. A force F of 2.30 N is applied to the end of the bar opposite the pivot. The force makes an angle of 65.0o with the bar. (The ? in the figure is the angle for the "line of action" of the f..
An ocean liner leaves New York City and travels 43° north of east for 189 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
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