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Light travels from crown glass into air. The angle of refraction in air is 60o. What is the angle of incidence in the glass? (index of refraction for crown glass is 1.52) Please show all of your work and be sure to show what equations you used as well as units.
three equal charges q are placed at each of three corners of a square of side d. a fourth charge of -3q is placed at
A sealed chamber, totally submerged is anchored to the ocean floor. If the chamber has a mass of 2.5 x 140^7 kg and a volume of 2.8 x10^4 m³; What is the buoyant force on the chamber? What is the tension in the anchor chain holding the chamber under ..
A 1260-kg car and a 2020-kg tow truck approach a curve on the expressway that has a radius of 235m. find the normal force on the car to the highway surface
q1. a krypton laser produces the cylindrical red laser beam 2.0mm in diameter with 2.0w of power. what is the light
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a golf club improvised from a tool.
The drawing shows three objects. They are connected bystrings that pass over massless and friciton-free pulleys. find the tension in each of the two strings
A communications satellite of mass 100 kilogram is in a circular orbit of radius 4.22 x 107 meter around the Earth. Find the magnitude and direction of the angular momentum of this satellite
The output voltage of a 81W transformer is 12V , and the input current is 19A. By what factor is the voltage multiplied
liquid helium has a temperature of only 4.24 k and is in equilibrium with its vapor at atmospheric pressure. calculate
How much heat flows from 1.00 kg of water at 38.0°C when it is placed in contact with 1.00 kg of 20°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
A helicopter is lifting two crates simultaneously. One crate with a mass of 160 kg is attached to the helicopter by cable A. The second crate with a mass of 73 kg is hanging below the first crate and attached to the first crate by cable B. As the hel..
When 165 V is applied across a wire that is 14 m long and has a 0.31 mm radius, Find the resistivity of the wire
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