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The wavelength of the laser beam used in a compact disc player is 510 nm. Suppose that a diffraction grating produces first-order tracking beams that are 1.3 mm apart at a distance of 3.1 mm from the grating. Estimate the spacing between the slits of the grating.
A tube is open only at one end. A certain harmonic generted by the tube has a frequency of 470Hz. The next higher harmonic has a frequency of 555Hz. The speed of sound in air is 343m/s.
A 3 kg toy car with a speed of 5 m/s collides head-on with a 2 kg car traveling in the opposite direction with a speed of 5 m/s, how much kinetic energy is lost
An air-track glider attached to a spring oscillates between the 8.00 mark and the 69.0 mark on the track. The glider completes 10.0 oscillations in 40.0 .
A 45.0kg girl is standing on a 170 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.53m/s relative to the plank.
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. how much is on the outer surface of the car
A parallel beam of light containing red (660 nm) and violet (410 nm) wavelengths goes from diamond to water, striking the surface between them at a 19° incident angle
Estimate the time constant in a RC circuit.
A particle is displaced in 0.92 s from point A to point B with a uniform speed of 4.8 m/s via a circular path of radius 3.8 m centered at the origin. Obtain the average acceleration of the particle
Compute the volume charge density of the atmosphere, assuming it to be uniform between 300 and 450 m. (Hint: You may neglect the curvature of the earth. Why?)
A cube of side 9.50cm is placed in a uniform field E=7.50×103 N/C with edges parallel to the field lines, What is the net flux through the cube, What is the flux throught the rigt face
A bug is on the edge of a rotating record player moving toward a light positioned along the edge of record player as well. Determine the accelerations acting on the bug
The wavelength of an electromagnetic wave is measured to be 4.15 x 10^-6 m. What is the frequency of the wave, What type of EM wave is this
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