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Linearly polarized light is incident on a piece of polarizingmaterial. What is the ratio of the transmitted light intensity tothe incident light intensity when the angle between the transmission axis and the incident electric field is(a) 30° and (b) 74°?
An isolated conductor of arbitrary shape has a net charge of +8.6 x 10- 6 C. Inside the conductor is a cavity within which is a point charge q = +3.8 x 10-6 C. determine the charge on the cavity wall
A charge of 2.19 µC is held fixed at the origin. A second charge of 2.19 µC is released from rest at the position (1.15 m, 0.470 m) . If the mass of the second charge is 2.10 g, what is its speed when it moves infinitely far from the origin?
A projectile is shot from the surface of Earth by means of a verypowerful cannon. find the speed of the projectile when it left the cannon
A dancer completes 2.2 revolutions in a pirouette. What is her angular displacement
A cue stick hits a cue ball with an average force of 24 N for a duration of 0.028 s. If the mass of the ball is 0.16 kg, how fast is it moving after being struck
A 232 kg cart runs into the rear end of a 102 kg cart that is stationary. What is the speed of the moving cart before the collision
You and your friends find a rope that hangs down 18m from a high tree branch right at the edge of a wide river. How long must you hang on if you want to stay dry
between the poles of a powerful magnet is a cylindrical uniform magnetic field with a diameter of 4.50 cm and a
a skier is gliding along at 2.0 ms on horizontal frictionless snow. he suddenly starts down a 12deg incline. his speed
a bomber flying horizontally at 120ms drops a bomb from an elevation of 240m. how far horizontally does the bomb travel
A rock is suspended by a light string. When the rock is in air, the tension in the string is 39.1 N. What is the density of the unknown liquid
a 78 g ice cube at -18degc is placed in a lake whose temperature is 12degc. calculate the change in entropy of the
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