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A laser-beam is fired through the air into a solid block of diamond (don't ask where we got it, it's a secret). The laser-beam strikes the diamond at an angle 26degrees from the normal.
Consider the index of refraction in the diamond to be 2.4.
What is the angle of refraction within the diamond?
An air conditioner draws 19A at 220-V ac. The connecting cord is copper wire with a diameter of 1.291mm, If the length of the cord (containing two wires) is 6.5m , how much power is dissipated in the wiring
A 75 g Frisbee is thrown from a point 1.2 m above the ground with a speed of 14 m/s. find the reduction in Emec of the Frisbee-Earth system
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm).
A power transmission line 50km long has a total resistance of 0.60 ohms. What percentage of the original energy is lost when the transformer is used
A transformer with 1760 turns on the primary and 347 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output. What is the current amplitude in the primary coil
A particle of ionizing radiation creates 4900 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy was deposited
Light of wavelength 189 nm shines on a metal surface. 3.94 eV is required to eject an electron. What is the cutoff wavelength for this metal
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
While a woman stands with two feet on a scale, the scale reads 490 N. When she lifts one foot, scale reads more or less.
a lower tank contains water while an upper tank contains air with a negligable concentration of water vapor. what mass of water vapor diffuses through the tube each hour
In a period of 1 s, 4.00 x10^23 nitrogen molecules strike a wall with an area of 6.30 cm2. If the molecules move with a speed of 300 m/s and strike wall head-on in elastic impacts, what is the pressure exerted on the wall? (The mass of one N2 mole..
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