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What are the electrical charge carriers in (a) computers and in (b) biology?
A rectangular loop is made up of 50 turns of wire and has dimensions of 45 x 55 cm. It is located in a uniform 2 T magnetic field. Over a time of 0.3 s, Calculate the average emf induced in the coil
A solar cell has a light-gathering area of 10 cm2 and produces 0.2 A at 0.8 V (DC) when illuminated with S = 1000 W/m2 sunlight. What is the efficiency of the solar cell
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, what is the magnitude of the vertical component of force produced by the wall
A photon having E = 12.5 keV energy scatters from a free electron inside a metal. At which angle will the electron scatter
A flat copper sheet has a hole with area 0.265 m^2 at room temperature (25 degree C). If it's heated to 510 degree C, what's the hole's new area
A 70 g bullet traveling at 250 m/s penetrates a block of ice at 0°C and comes to rest within the ice. Assuming that the temperature of the bullet does not change appreciably, how much ice is melted as a result of the collision?
A Father pulls his sons across the son on a sled. The children and sled together weigh 550-N. The father pulls the sled with a force of 400-N at an angle of 40 degrees above the horizontal. Avoiding friction, determine out the acceleration of the ..
the decay constant of radon is .181day. a sample of radon contains 6.00x108 radon atoms. how many atoms are left after
The outside mirror on the passenger side of a car is convex and has a focal length of -8.5 m. Find the image distance of the truck
The force of the wind on the sails of a sailboat is 390 Newton north. find the direction and magnitude of the acceleration of sailboat
the top of a tower much like the leaning bell tower at pisa italy moves toward the south at an average rate of 1.5 mmy.
Light with a wavelength of 525 nm passes through a single slit that is 35 micro meters wide. On a screen that is 1.5 m away, how far is the second dark spot from the central bright spot
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