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A plastic light pipe has an index of refraction of 1.49. For total internal reflection, what is the minimum angle of incidence if the pipe is in the following media?
(a) air
°
(b) water
The total force on a one foot wide section of the inclined portion of the wall and the location and line of action of the resultant force.
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.25 km long. What is the resistance of such a wire at 20°C
If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact?
The skis have a thrust of 220 N. Sam's speed at the bottom is 45.0 {rm m/s}. Illustrate what is the coefficient of kinetic friction of his skis on snow?
A hiker walks 3.50 km at an angle of 45.0 degrees north of west. After that the hiker walks 1.5 km south. What is the magnitude and direction of hiker's totally displacement.
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m. Determine maximum height reached by dart.
A velodrome track is banked so that a bicycle traveling at 43.5 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 59.0 m
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (n=1.33). The Joker stands gloating at the edge of the pool.
Find the differential equation and use the initial conditions to determine the constant of integration.
Three equal point charges, each with charge 1.10 , are placed at the vertices of an equilateral triangle whose sides are of length 0.200. Calcualte the electric potential energy of the system?
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