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Illustrate the refraction of a light ray from a medium of higher speed to a medium of lower speed. Label each of the following: incident ray, refracted ray, angle of incidence, angle of refraction, normal, each medium, boundary. Discuss the proportions which exist between each media concerning wavelength, speed, index of refraction, and angles.
A ball thrown horizontally at 23 m/s travels a horizontal distance of 55 m before hitting the ground. From what height was the ball thrown
A freezer of resistance 9.6 is connected to a 123.3 V source. What is the power delivered when this freezer is on
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. how far (in kilometers) are you from the base of the arch
An atomic nucleus of mass m traveling with speed v collides elastically with a target particle of mass 2m initially at rest and is scattered an 90 degrees. what angle does the target particle move after collision
An alpha particle (charge +2e, mass 6.64 x 10^-27) moves head-on ata fixed gold nucleus (charge +79e). If the distance of closest approach is 2.0 x 10^-10m, what was the initial speed of the alpha particle?
A box slides down a 40° ramp with an acceleration of 1.260 m/s2. Find out the coefficient of kinetic friction between box and ramp.
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.050 m2. What magnetic field should be used in the second generator, so that its peak emf is the same as that of the first generator
Superman throws a boulder of weight 2400N at an adversary. What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 14.4m/s^2 ?
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
A 0.900 kg mass on a spring oscillates horizontally with little friction according to the following equation: x = 0.0700cos(2.30t), where x is in meters and t in seconds.
A 7-Kg bowling ball whose radius is 0.13 m is rolling directly towards you, turning 3 times per second. What is its translational angular momentum about you
All distant galaxies are moving away from us. Describe why this does not imply that we are at the center of universe.
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