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(a) What is the average intensity (in W/m 2 ) of a 1000 Hz sound wave in water if the displacement amplitude of the wave is 1.00 nm? (1 nm=10 –9 m).
How much gas is left in the tank? Give this value in two ways: the number of moles, and the more useful quantity of the number of Liters.
Violet light has a wavelength of about 410 nm. What is its frequency? Calculate the energy of one photon of violet light.
Two trains, one traveling at 68km/h and the other at 136km/h. They are headed toward one another along a straight level track.
Execute the necessary research to find the equation that is used to calculate the Schwarzschild radius of a black hole
A 0.90X10^3 kg Toyota collides into the rear end of a 2.2X10^3 kg Cadillac stopped at a red light.
Road accident researchers were interested in the effectiveness of Red Light cameras that can photograph the number plates of cars.
A light spring is attached to one of them, and the blocks are pushed together with the spring between them (Fig).
At the intersection of Texas Avenue and University Drive, a blue subcompact car of mass 950 kg traveling east on University collides with a maroon pickup truck.
A swimmer wants to swim straight across a river with current flowing at a speed of v1 = 0.27 km/h.
A certain stop light stays yellow for 5 seconds before turning red. Suppose that your maximum deceleration from braking is 2 m/sec2.
If the index of refraction of medium #2 would change, then the refracted angle in medium #3 would also change.
What is light? Is it a particle, wave, or both? Define the wave properties: period, wavelength, amplitude and frequency. What is c?
In one such accident, a 1850 kg car traveling to the right at 1.40 m/s collides with a 1450 kg car going to the left at 1.10 m/s.
Calculate the power at the input to the cell phone receiver, in dBW. Set your answer out as a link budget and include 3 dB miscellaneous losses.
The sail is oriented perpendicular to the direction of the incoming light, in order to intercept as much light as possible.
Does the wave theory of light explain more phenomena than the particle theory? Support your answer with specific details.
If an electric field wave oscillates north and south, and the wave is traveling straight up, then what direction does the magnetic field wave oscillate?
Tom's rocket ship is moving away from Kathy at 0.75c. He fires a laser beam in the backward direction, toward Kathy.
An observer at r = r1 in Schwarzchild geometry sends a light signal in the radial direction toward r = r2 where r2 > r1.
Why don't we generally notice the effects of special relativity in our daily lives? Be specific.
Some time after passing the Earth, the pilot shoots a laser pulse backward at a speed of 3 *10 ^8 m/s with respect to the spaceship.
A spaceship moves away from Earth at a speed 0.874c and fires a shuttle craft that then moves in a forward direction at 0.21c relative to the ship.
Suppose the speed of light were 100 mph. Trains on parallel tracks are approaching each other at speeds of 92.64 mph and 87.89 mph.
Relative to its new rest frame, the spaceship is given a further 0.46c increment 12s later (as measured in its new rest frame; call this boost.