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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 beam of light traveling in water (n=1.33) is incident on a glass surface (n=1.52). At what angle of incidence will the outgoing light be fully polarized?
Dolphins and other sea creatures can leap to great heights by swimming straight up and exiting the water at a high speed. What is the force of the water on the dolphin as it is coming to rest
An Argon laser emits light with a wavelength = 486nm. Calculate the frequency for the emitted light. Calculate the energy of photon in the beam
A car is moving on a flat horizontal circular track of radius 120m. The speed of the car is constant, 15 m/s. The mass of the car is 1200kg. Ignore air resistance.
Two narrow slits 41 µm apart are illuminated with light of a wavelength 604 nm. What is the angle of the m=3 bright fringe in degrees.
Suppose that the specific heat capacity cp Of the body discussed in Section 7.6 of the text is 10 J kg-1 K-1and T1 =200 K. Find the entropy change of the universe in both cases
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. What is the total kinetic energy of the two blocks after the collision (in joules)
electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point
A 100 coil spring has a spring constant of 438 N/m. It is cut into two shorter springs, each of which has50 coils. One end of a 50-coil spring is attached to a wall. An object of mass 37 kg is attached to the other end of the spring, and the system i..
A lead fishing weight with a mass of 57.0g absorbs 146cal of heat. If its primary temperature is 50 C, what is its final temperature.
An electron in a vacuum is first accelerated by a voltage of 21100 V and then enters a region in which there is a uniform magnetic field of 0.644 T at right angles to the direction of the electron’s motion.
A car speeds up from 50 mph to 65 mph to pass a truck. If this requires 7 seconds, what is the average acceleration of the car
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