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The angle of incidence at a solid/liquid boundary is 78.1°,and the index of refraction of the solid is n = 1.62.(a) What must be the index of refraction of the liquid such that the direction of the light entering the liquid is not changed? (b) What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back intothe solid?
Two identical point charges are fixed distance from one another. If one of their charges was doubled an the other was halved, how would the electric force be affected.
A ball of mass M and radius R starts from rest at a height of h = 1.73 m and rolls down a ? = 25.8° slope, What is the linear speed of the ball when it leaves the incline
A certain freely falling object requires 1.56 s to travel the last 37.0 m before it hits the ground. From what height above the ground did it fall.
A motercycle has a mass or 2.50*102 kg. a constantforce is excerted on it for 60.0s. What is the change in momentum
Your refrigerator has a mass of 124.7 kg, including the food in it. It is standing in the middle of your kitchen, and you need to move it. The coefficients of static and kinetic friction between the fridge
Two thin lenses with a focal length of magnitude 10 cm, the first diverging and the second converging, are located 7.88cm apart. How far from this first lens is the final image formed
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0â. what is his speed as he leaves the roof
A bat at rest sends out ultrasonic sound waves at 53.5kHz and receives them returned from an object moving directly away from it, What is the received sound frequency
A spherical drop of water carrying a charge of 35 pC has a potential of 540 V at its surface (with V = 0 atinfinity). What is the radius of the drop?
From her police car running at 70 mi/h, officer K sends a radar signal of a 28.5 mm wavelength to an SUV in front of her. What is the speed of the SUV [in mi/h]
You're using a rope to pull a sled at constant velocity across level snow,with coefficient of kinetic friction 0.050 between sled and the snow. The sled is loaded with physics books, giving a total mass of 21 kg.
The mass of the Earth is 5.98 ? 1024 kg, and the mass of the Moon is 7.36 ? 1022 kg. Locate the center of mass of the Earth-Moon system as measured from the center of the Earth
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