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A beam of light emitted in a pool of water from a depth of 60.5 cm. How far away, relative to the spot directly above it, must it strike the air-water interface in order that the light does not exit the water?
an aluminum baseball bat has a length of 0.619 m at a temperature of 16.7degc. when the temperature of the bat is
The National Museum of Photography, Film & Television, in England, has a huge converging lens with a diameter of 1.37 m and a focal length of 8.45 m. What is the image magnification
A Nordic jumper goes off a ski jump at an angle of 9.8° below the horizontal, traveling 108 mhorizontally and 64.3 m vertically beforelanding. (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the ra..
The system is released from rest with the rod horizontal. If the animals can manage to hold on, illustrate what are their speeds as the rod swings through a vertical position?
A sled is being pulled along a horizontal surface by a horizontal force of magnitude 600 N. Find the instantaneous power created by force
Two forces, F? 1 and F? 2, act at a point. F? 1 has a magnitude of 8.20N and is directed at an angle of 60.0, What is the x and component of the resultant force
Three metal fishing weights, each with a mass of 1.00x102 g and at temperature of 100oC, are placedin 1.00x102g of water at 35oC. The final temperature of the mixture is 45.0oC. What is the specific heat of the metal in the weights?
Find an expression for work done by the gas
The power brick for a laptop computer has a power rating of 45 W. What is the rms current in the input coil of the transformer
question a certain radioactive parent nucleus transforms to a different daughter nucleus by emitting an electron and a
A bowling ball of mass M and Radius R (treated as a solid sphere) is thrown along a level surface so that initially (t = 0) it slides with a linear speed Vo but dows not rotate, How long does it take to begin rolling without slipping
A 1 490-kg automobile has a wheel base (the distance between the axles) of 3.20 m. Find the force exerted by the ground on each wheel
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