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Light traveling in air enters a material at an angle of 50 degrees with respect to the normal. The refracted beam in the material makes an angle of 26 degrees with respect to the normal. Calculate the index of refraction of the material.
An ideal gas in a container is at a temperature of 92.2°C. What is the average translational kinetic energy of a gas molecule
A golf ball with a coefficient of restitution of 0.78 is tossed horizontally at 0.9 m/s from a height 1.5 m above the level ground. What is the maximum height of the first bounce of the golf ball
A 15-gram coin is placed on the rim of a turntable rotating at a rate of 15 RPM. The radius of the turntable is .25-meters. determine The centripetal force acting on the coin
A coil has an induced voltage of 120 volt when the rate of flux change is 0.4 Wb/s. How many turns are in the coil
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.64s, What is the mass of the grapes
A 8.0mH inductor is connected in parallel with a variable capacitor. The capacitor can be varied from 180pF to 320pF. What is the minimum oscillation frequency for this circuit
If a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce?
A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 350 N/m. What is the amplitude of the oscillations
A 1 530-kg automobile has a wheel base (the distance between the axles) of 2.70 m. Find the force exerted by the ground on each wheel
A stationary whistle emits a sound of 188Hz. If passengers in a car hear the whistle with a frequency of 198 Hz, how fast was the car moving? Make use of 340 m/s for the sound velocity.
An 825-kg space vehicle is circling Earth in a circular orbit with a radius of 10,300 km. How much energy is required to accomplish this
Graph the power of the laser when it's on. b) Compute the energy in the pulse. c) Compute the number of photons in the pulse.
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