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1. A piece of lucite (transparent plastic) has an index of refraction of 1.45. Find the critical angle (for total internal reflection) if the plastic is in air. Now find the critical angle if the plastic is immersed in water. In both cases, we are considering a ray of light inside the lucite, hitting the interface between lucite and air or lucite and water.
2 A mylar balloon has a shiny surface with a radius of curvature of 0.80 m. Suppose you look at the balloon, with your face 1.0 m from its surface. How far below the surface is the image of your face? Draw a ray-tracing diagram illustrating this situation. Make the draw TO SCALE AND ACCURATE, with a scale of 1.0 m = 10 cm (that is, 10 to 1 reduction.)
Three moles of an ideal monatomic gas expand at a constant pressure of 2.70 ; the volume of the gas changes from 3.40×10?2 to 4.60×10?2 . First calculate the initial temperature of the gas. Second calculate the final temperature of the gas. Thrid ..
During a walk on the Moon, an astronaunt accidentally drops his camara over a 20.0m cliff. It leaves his hands with zero speed, and after 2.0s it has attained a velocity of 3.3 m/s downward. How far has the camera fallen after 4.0 s?
A scuba diver and her gear displace a volume of 70.0L and have a total mass of 73.1kg. What is the buoyant force on the diver in sea water
A sound source approximated as a point radiates sound equally in all directions. What is the total power of the source
a loudspeaker at the origin emits a 120hz tone on a day when the speed of sound is 340ms. the phase difference between
Express your answers using two significant figures. Enter the x and y coordinates of the charge separated by a comma.
A spring is hung from the ceiling. A 0.375 -kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
you throw a book straight up from s height of 2 meters above the ground with a speed of 15m/s. what is the maximum height above the ground that the book reaches
Estimate the total amount of U-235 needed to operate a 600. MWreactor for one year assuming e = 40% and that each fission produces 200. MeV. Find the Energy needed in Joules per year and Fissions needed per year to produce the energy?
A hydrogen atom that is initially at rest absorbs a photon with an energy of 18 eV. What is the momentum of the atom after it absorbs the photon
A charge of -4.39 μC is fixed in place. From a horizontal distance of 0.0132 m, a particle of mass 9.78 x 10-3 kg and charge -8.74 μC is fired with an initial speed of 90.4 m/s directly toward the fixed charge. How far does the particle travel bef..
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. What is the magnitude of the impulse that acts on the block of wood
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