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The critical angle for total internal reflection at a benzene-air interface is 41.8°. A ray traveling in air has an angle of incidence of 28.0° at the interface. Find what angle does refracted ray in liquid make with the normal?
A golfer drives a golf ball with a velocity of 100ft/sec and an angle of 45 degrees, Find the time of travel for the ball
The density of water is about 1000 kg/m3 and the density of air is about 1 kg/m3.
In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 548 nm. What is the stopping voltage required
A rotating wheel requires 8.00 second to rotate 30.0 revolutions. Its angular velocity at the end of the 8.00 second interval is100.0 rad/s. Evaluate what the constant angular acceleration of wheel
A synchronous satellite, which always remains above the same point on a planet's equator, is put in orbit around Neptune so that scientists can study a surface feature. Neptune rotates once every 16.1 h. Use the data of this table to find the altitud..
a light bulb is connected to a 120.0-v wall socket. the current in the bulb depends on the time t according to the
The Bohr model of an atom assumes that electrons orbit the nucleus, in a manner similar to how planets orbit a sun. What is the orbital period of the electron
1. two alpha particles helium nuclei each consisting of two protons and two neutrons have an electrical potential
A bar of lead (bar A) is in thermal contact with a bar of silver (bar B) of the same length and area. Find the temperature at the junction when the energy flow reaches a steady state
q1. the pulley system is used to lift a 61 kg crate. note that one chain connects the upper pulley to the ceiling and a
A freight train is rolling down the track at 65.0km/hr. Out ofthe fog, 1km behind, a fast express going 120km/hr, appears on thesame track. The Express engineer slams on the brakes.
Assume that the air temperature is 20C and that no wind is blowing. How much time would elapse if the wind were blowing toward the observer at 33.0Km/h from where the rail was struck?
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