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A laser beam is reflected by a plane mirror. It is observed that the angle between the incident and reflected beams is 38°. If the mirror is now rotated so that the angle of incidence increases by 7.0°, what is the new angle between the incident and reflected beams?
In a game of pool, a cue ball with an initial velocity of 1.50 m/s directed to the right (along the +x-axis) collides with the five ball, Find the cue ball's final velocity
suppose that E = 50.0V , R = 210? and L = 0.140H . With switch S2 open, switch S1 is left closed until a constant current is established. Which point is at a higher potential
An ambulance has a siren of frequency 700 Hz. If the ambulance is moving at a speed of 60 miles per hour, what will be the frequency heard by a man standing on the sidewalk as the ambulance approaches him
Two solid spheres, each of mass m, are rolling without slipping with a speed v. If the spheres have radii R1 and R2 with R1/R2 = 5.5, what is the ratio of their kinetic energies
Two identical +9.5 uC point charges are initially 3.5cm apart from each other. If they are released at the same instant from rest, how fast will each be moving as they are very far away from each other? Assume they have identical masses of 1 mg.
A vessel contains 32 grams of dry ice (solid carbon dioxide) at T = -78°C, How much energy is required for the carbon dioxide to sublimate
A large electromagnet coil is connected to a 121 Hz ac source. The coil has a resistance 410 ohms , and at this source frequency the coil has an inductive reactance 260 ohms. What must the rms voltage of the source be
Your tube is a half meter long, with both ends closed. The speed of sound under current conditions (maybe different from the last experiment) is 339 m/s. What is the lowest resonant frequency
Radiation falling on a perfectly reflecting surface produces an average pressure p. what is the pressure at that surface in terms of p
The clapper is a small, 1.8 kg mass attached to one end of a slender rod that has length L and negligible mass. The other end of the rod is attached to the inside of the bell
The water in a atank is at a gauge pressure of 190,000 Pa. what is the force on the bottom of the tank
A person with a mass of 95 kg and a volume of 0.101 m3 floats quietly in water. What is the volume of the person that is above water
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