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To measure the speed of light, Fizeau used a rotating disk with equally spaced holes during which light could pass. Light was directed at the rotating disk, passed during one of the holes, bounced from a distant mirror, and then the angular speed of the wheel was adjusted until the returning beam of light passed through the next hole in the disk. In one such experiment, the wheel is spun at 1000 rpm and the mirror is 18 km away. If the speed of light is 3.00 x 108 m/s, what is the needed angular spacing among the holes so the returning light will pass during the next hole?
A marble rolls down an incline of 30 degrees. If the marble is initally at rest at the top ofthe incline of length 2.0 meters what will the speed of the marble be at the bottom of the incline
q1. a uniform upward-pointing electric field e of magnitude 3.5times103 nc has been set up between two horizontal
Susan's 10.0kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30° above the floor. The tension is a constant 32.0N and the coefficient of friction is 0.170. Use work and energy to find Paul's s..
The length of a certain wire is doubled and at the same time it's radius is reduced by a factor of 2
two guns a and b located at xa 0 and xb 1.5 km fire at an approaching rocket. gun a fires at t 0 gun b fires at t
a mass-spring system has bm wnaught5 where b is the damping constant and wnaught the natural frequency.how does its
A vertical containery with base area measuring 14.0 cm by 17.0 cm is being filled with identical pieces of candy, at what rate does the mass of the candies in the container increase
the warm source of a carnot cycle has a temperature of 100 ?c while the cold source consists of melting ice.when the
A 1.00 cm object is 60.0 cm in front of a diverging lens that has a -30.0 cm focal length. Find the image position and height. Is the image real or virtual? Is the image upright or inverted
a bottle of wine known as a squinch contains a volume of 1.1 liters. a bottle known as a serroboam contains 8.5 u.s.
If the magnitude of the drift velocity of free electrons in a copper wire is 9.12 10-4 m/s, what is the electric field in the conductor
A "75 Watt" light bulb uses an average power of 75 W when connected to an rms voltage of 120V. what is the maximum current in the light bulb
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