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A light source for light scattering has a resistance of 160Ω. A DC voltage of 100 Volt is attached across it.
1) Find the power dissipation in watts?
2) Find the current through the source?
An oscillator with a mass of 530 g and a period of .80 s has amplitude that decreases by 2 percent during each complete oscillation. At what time will the energy be reduced to 33 percent of its initial value.
The mean distance among earth and the sun is 1.50 multiplied by 10 11 m. The average intensity of solar radiation incident on the upper atmosphere of the earth is 1390 W / m 2 . Assuming the sun emits radiation consistently in all directions, what i..
a cylindrical tube oriented vertically on earths surface closed at the bottom and open at the top height 100 m cross
A dynamite blast at a quarry launches a rock straight upward, and2.5 s later it is rising at a rate of 18 m/s. Assuming airresistance has no effect on the rock, calculate its speed(a) at launch and (b)5.3 s afterlaunch
a charge of 9.3 micro-coulombs is placed at the origin of a coordinate system. another charge of -13.6 micro-coulombs
In a certain series RLC circuit being driven at a frequency of 60.0 Hz, By what phase angle does the current lag the generator emf
The rate of rotation of the smooth-walled tub is chosen so that a small piece of cloth will lose contact with the tub when the cloth is at an angle of ? = 73.0° above the horizontal. If the radius of the tub is r = 0.455 m, what rate of revolution..
An air bubble has a volume of 1.25 cm3 when it is released by a submarine 100 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
a conducting sheet carries a surface current density of k amperesmeter. there are no other currents in the vicinity.a-
A 1100-kg sports car (including the driver) crosses the rounded top of a hill (radius = 85.0 m) at 23.0 m/s. Determine the normal force exerted by the road on the car
Frank and Mary are twins, and Mary wants to travel to our nearest star system, Alpha Centauri (4.30 lightyears away). How old will Frank be when she returns
A fighter jet is launched from an aircraft carrier with the aid of its own engines & a steam-powered catapult. The thrust of its engines is 2.3 x 105 N. In being launched from rest it moves through a distance of 87 m & has a kinetic energy of 4.5 ..
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