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A beam of light travels from a medium with an index of refraction of 1.95 to a medium with an index of refraction of 1.30. If the beam refracts at an angle of 23.5o from the normal, at what angle to the normal did it enter the second medium?
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 29.5°, find the critical angle for the liquid when surrounded by air
A uniform steel beam has a mass of 720kg On it is resting half of an identical beam, What is the vertical support force at each end
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 0.321 mH and the capacitor has a value of 22.4 pF. Calculate the frequency of the radio station
A 51.0 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 235 N. What is the final speed of the crate after being pulled these 22.5 m
What is the magnitude of the force applied throughout this time? What is the direction of the force applied throughout this time?
A tennis player receives a shot with the ball (0.0600 kilogram) traveling horizontally at 60.0 m/s and returns the shot with the ball traveling horizontally at 32.0 m/s in the opposite direction. Find what work does the racket do on the ball
Due to a tune-up, the efficiency of an automobile engine increases by 7.00 %. For an input heat of 1290 J, how much more work does the engine produce after the tune-up than before
A wave on a string is described by D(x,t)=(3.6cm)x sin[2(pi)(x/(8.4m)+t/(0.12s)+1)], where x is in m and t is in s.] What is the wave number
a workman on the scaffolding outside one of the science classrooms drops a wrench. a physics student bored with the
Suppose that the dipole moment associated with an iron atom of an iron bar is 2.4 x 10-23 J/T. What is the dipole moment of the bar
An 82 g arrow is fired from a bow whose string exerts an average force of 95N on the arrow over a distance of 77.00 cm. What is the speed of the arrow as it leaves bow.
Suppose an old flashlight battery shows a voltage of 1.45 V when the probes of a voltmeter are placed across it. What is the current when the resistor is hooked up
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