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Light rays traveling through air enters a piece of plexiglass at an angle of 33°. The index of refraction of plexiglass is 1.43. The light than re-enters the air at what angle upon leaving the plexiglass.
What happens to the Heat and Temperature during a Phase Change? (For example: Solid to Liquid, Liquid to Gas, or Solid to Gas directly)
Starting from rest, a 5.2-kg blockslides 2.40 m down a rough 30.0°incline. The coefficient of kinetic friction between the block and the incline is µk = 0.436. Determine the work done by the force of gravity.
A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the body of the top. What is the final angular velocity of the top
A 63.0kg skier is moving at 6.55m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.55m long. How fast is the skier moving when she gets to the bottom of the hill
The electron and positron have the same velocity. What is the kinetic energy of the electron
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor, How tall is the tower
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 56.0 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. (Assume the initial direction of the ball is in the -x di..
An inductor has the form of a coil with 1750 turns and a diameter of 1.3 mm. The inductor is placed in a magnetic field perpendicular to the plane of the coil and increasing at a rate of0.31 T/s.
An oscillator with a mass of 430 g and a period of 0.900 s has an amplitude that decreases by 1.00% during each complete oscillation. If the initial amplitude is 9.20 cm, what would be the amplitude after 44.0 oscillations? At what time will the e..
question1an airplane is flying horizontally with speed 1000 280 while an engine falls off. neglecting air resistance
two identical 21.4-kg spheres of radius 14 cm are 27.6 cm apart center-to-center distance.a if they are released from
A tank having a volume of 0.10 m3 contains helium gas at 155 atm. How many balloons can the tank blow up if each filled balloon is a sphere 0.30 -m in diameter at an absolute pressure of 1.3 atm.
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