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You shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. You make a plot of sin ?inside versus sin ?outside for the plastic object and calculate the slope of best-fit line of your plot to be 0.67710 ± 0.00823. What is the index of refraction of the plastic object?
A fireman 52 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 32° above the horizontal.
A constant force, F = (4.55, ?3.79, 2.10) N,acts on an object of mass 17.4 kg, What is the total work done by this force
A hot wheels track has a spring loaded launcher. A 100g car is pushed into the launcher, which compresses the spring by 2cm. The cars initial velocity after launching is 3m/s.
A transformer with 580 turns in its primary coil has to decrease the voltage from 6380 V to 220 V for home use
A ball thrown straight upward returns to its original level in 2.40. What is the initial speed of the second ball if it also returns to its original level in 2.40
Two blocks are connected by a very light string passing over a massless and frictionless pulley, Find the total work done on 20.0-N block if ?s=0.500 and ?k=0.325 between the table and the 20.0-N block
What is the efficiency of a cyclical heat engine in which 65.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine
An electron beam is deflected upward through 3.23 mm while traveling in a vacuum between two deflection plates 11.6 mm apart, What is the kinetic energy of each electron when it leaves the space between the plates
A hollow sphere of mass 1000kg and radius 25cm is rolling down an incline plane, making a beta angle horiozntally 30degrees. calculate the moment of inertia of the hollow sphere
A highway is to be built between two towns, one of which lies 50.0 km south and 82.0 km west of the other. find at what angle would this highway be directed
Larry tosses a volleyball to his wife, Lise, who catches it at the same height from which it was tossed. what was the initial horizontal velocity
Following the procedure in the video, create three traces of the pendulum motion of the cup. Compare the three traces for amplitude, wavelength, and frequency.
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