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The index of refraction of the core of a piece of fiber optic cable is 1.72. If the index of the surrounding cladding is 1.41, what is the critical angle for total internal reflection for a light ray in the core incident on the core-cladding interface?
A perfect cube with sides of 9.0cm is placed so that one corner is at the origin and its faces are parallel to the coordinate planes, find the total charge located within the cube
While leaning out a window that is 5.5 m above the ground, you drop a 0.60-kg basketball to a friend at ground level. determine the amount of work done by the force of gravity
A box of sand, initially at rest, is to be pulled across a floor by means of a cable in which the tension cannot be allowed to exceed 1100N. What should be the angle between the cable and the box in order to pull the greatest mass of sand
Consider a 1112 kg automobile as it passes over a hill on a road that follows the arc of a vertical circle of radius 48 m near its top. Find the normal force acting on the car when the car is at rest
A cue ball, which has a mass of 0.17 kg, collides head on with a stationary 8 ball, what was the speed of the cue ball before and after collision
An isotope of phosphorus called P-32 is radioactive. It decays with half life of 14.3 days with the emission of beta particle. A 1.0 m?Ci source of P-32 is implanted in a tumor where it would deliver radiation dose of 28.6 Gy.
A spring-loaded cannon aimed at 47 deg. above the horizontal is on the last car of a long train of flat cars. How far from the cannon on the train does the projectile land
A 70 m3 incompressible box is completely submerged in a fluid. What volume of fluid is displaced by the box if the fluid is air? The density of air is 1.2 kg/m3
A tennis player, when performing a serve, applies an average force to a tennis ball of 525 N to a 55 g ball. What is the speed of the ball as it leaves the racket
A165-g wooden cup at 15.2 degree Celcius is filled with 325ml of brewed coffee (essentially water) at 100 decrees Celcius. What will be the common final temperature of the cup
Most of the blackholes observed by astronomers have masses equal to few solar masses (the result of the death of a high mass star) or have masses equal to several million solar masses. Calculate the Schwarzschild radius of a blackhole
A 0.300kg block is moving to the right along a horizontal frictionless surface with a speed of 0.600 m/s. Find the final velocity of each block after the collision
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