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The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If c= 41.7° what is the index of refraction of the material?
A light ray strikes this material (from air) at an angle of 34.3° with respect to the normal of the surface. Calculate the angle of the reflected ray (in degrees).
Calculate the angle of the refracted ray (in degrees).
Assume now that the light ray exits the material. It strikes the material-air boundary at an angle of 34.3° with respect to the normal. What is the angle of the refracted ray?
The centers of a 14kg lead ball and a 110g lead ball are separated by 8.0cm. What gravitational force does each exert on the other
two small beads having positive charges 3q and q are fixed at the opposite ends of a horizontal, insulating rod, extending from the origin to the point x=d. a third small chatged bead is free to slide on the rod. at what position is the third bead..
the security alarm on a parked car goes off and produces a frequency of 1110 hz. the speed of sound is 343 ms. as you
A rocket moves upward from rest with an acceleration of 29.4 m/s2 for 4 seconds. It then runs out of fuel and continues to move upward. Neglecting any air resistance, how high will it rise?
Two children fighting over a toy pull on the toy in different direction. What is the magnitude of the net force on the toy
A 12.5-kg horizontal plank 4.00 m long rests on two supports, one at the left end and a second 1.00 m from the right end
Light travels from air through a flat sheet of glass (n =1.5) into water. If the angle of incidence in air is 39°, what is the angle of the refracted ray in water
A man stands on the roof of a building of height 16.6 m and throws a rock with a velocity of magnitude 25.6 m/s at an angle of 32.5 degrees above the horizontal. find the maximum height above the roof reached by the rock
A factory worker pushes a crate of mass 32.0kg a distance of 4.85m along a level floor at constant velocity by pushing horizontally on it. How much work is done on the crate by this force
The click beetle accelerates at 400 g over a distance of 0.60 cm as it bends its thorax to click. Assuming the beetle jumps straight up what speed doesit leave the ground? How much time is required to reach this speed?
An electron has a kinetic energy of 0.100 MeV. Find its speed according to classical and relativistic mechanics
Two round concentric metal wires lie on a tabletop, one inside the other. The inner wire has a diameter of 18.0cm and carries a clockwise current of 14.0 A, as viewed from above, and the outer wire has a diameter of 38.0cm .
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