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1. A light wave was reflected off of a mirror at an angle of56°. What was the incident angle?
2. A light ray in water is incident on fused quartz at a 31° angle of incidence. Find the angle of refraction.
A dockworker applies a constant horizontal force of 85.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. What is the mass of the block of ice
A car sounding its horn (rated by the manufacturer at 600 Hz) is moving at 20 m/s toward the east. What frequency will he hear the assuming that the speed of sound is 343 m/s
two cylindrical rods one of stainless steel and the other of red brass are joined at c and restrained by rigid supports
A steel guitar string 40 cm long has a mass density of 1.5 g/m and the tension is 500 N. Find the frequency of the second harmonic
The electric field strength just outside the outer conductor of a coaxial cable of outer radius of 0.2cm is E=7200N/C directed inward. find the initial surface charge density of the outer conductor
a 10g block with a charge of 810-5 c is placed in an electric field e 3000i-600j nc what are the magnitude and
find by dimensional analysis how the period t of a satellite orbiting a planet of mass m depends upon the gravitational
On a very muddy football field, a 100kg linebacker tackles an 85kg halfback. What is the direction of this velocity
a small point charge having charge q is fixed a distance h above a thin infinite sheet of charge with charge density
In a certain experiment, a radio transmitter emits sinusoidal electromagnetic waves of frequency 105.0 in opposite directions inside a narrow cavity with reflectors at both ends, How far apart are the nodal planes of the magnetic field
A cylindrical tank 10 ft in diameter, with axis vertical, has an inflow line of 0.2 ft inside diameter and an outflow line of 0.4 ft inside diameter. Water is flowing in the inflow line at a velocity of 4 ft/s and in the outflow line at a velocity..
The mass of a regulation tennis ball is 52.0g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 26.0m/s}. what impulse did he exert on the ball
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