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A neodymium-glass laser emits short pulses of high-intensity electromagnetic waves. The electric field of such a wave has an rms value of Erms = 2.8 x 109 N/C. Find the average power of each pulse that passes through a 9.3 x 10-5-m2 surface that is perpendicular to the laser beam.
sam whose mass is 66 kg takes off across level snow on his jet-powered skis. the skis have a thrust of 270 n and a
A monochromatic light source emits a wavelength of 490 nm in air. When passing through a liquid, What is the liquid's index of refraction
Niobium metal becomes a superconductor when cooled below 9 K. determine the maximum current a 1.95-mm-diameter niobium wire can carry and remain superconducting
a 2.0 kg box rests on a plank that is inclined at an angle of 65deg above the horizontal. the upper end of the box is
Two sinusoidal waves of the same period, with amplitudes of 5.0 and 6.5 mm, travel in the same direction along a stretched string; they produce a resultant wave with an amplitude of 10.036 mm. The phase constant of the 5.0 mm wave is 0. What is th..
Two 1.7 kg masses are 1.7 m apart on a frictionless table. Each has +1.1 µC of charge. What is the initial acceleration of the mass if it is released and allowed to move
A single conducting loop of wire has an area of 6.7 10-4 m2 and a resistance of 110 . Perpendicular to the plane of the loop is a magnetic field of strength 0.18 T. At what rate (in T/s) must this field change if the induced current in the loop is to..
In a Young's double-slit experiment, a set of parallel slits with a separation of 0.102 mm is illuminated by light having a wavelength of 585 nm, What is the difference in path lengths from the two slits to the location of a fifth order bright frin..
As a protest against the umpire's calls, a baseball pitcherthrows a ball straight up into the air at a speed of 200.0 m/s. find the force he exerts on the ball to give it this upward speed
An ideal, monatomic gas is allowed to expand quasi-statically and adiabatically, What is the work done by the gas and What is the change in the internal energy of the gas?
A marble slide towards a 2nd marble at rest along the surface of frictionless table-top. What is the velocity of the 2 bodies after collision
A room has dimensions of 4.2 m long, 3.5 m wide, and 2.4 m high. What is the weight of the air in the room
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