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An aluminum wire having a cross-sectional area equal to 2.70 10-6 m2 carries a current of 6.50 A. The density of aluminum is 2.70 g/cm3. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire.
What should be the least kinetic energy in electron volts
A 8.00×106 ? resistor and a 0.80 ?F capacitor are connected in series with an ideal battery of 10.00 V. How much energy was provided by the battery?
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, What length will you choose for your wire
A block M1 of mass 16.50 kg sits on top of a larger block M2 of mass 26.50 kg which sits on a flat surface. The kinetic friction coefficient between upper and lower block is 0.405. The kinetic friction coefficient between the lower block and the f..
A 43.5 mA current is carried by auniformly wound air-core solenoid with 460 turns, a 17.0 mmdiameter, and 11.0cm length. Compute the magnetic flux through each turn
A person walks 25.0 degrees north of east for 3.1 km. How far would another person walk due north and due east to arrive at the same location.
A 1.0 mW HeNe laser with wavelenght 633 nm is shown on a metal. The photocurrent is reduced to zero with stopping potential of 0.50 volts, What is the work function of the metal and what is the cutoff wavelength
Two children stand on opposite sides of a merry-go-round of diameter 6.0 m, Calculate the magnitude of the Coriolis force acting on the moving ball due to the rotation of the merry-go-round
What is the angular frequency in rev/s of combination.
Unpolarized light passes through two polarizers in turn with polarization axes at 33° to one another. What is the fraction of the incident light intensity that is transmitted
Dan is gliding on his skateboard at 2.00m/s. He rapidly jumps backward off the skateboard, kicking the skateboard forward at 8.00m/s (as measured by an observer on the ground). Dan's mass is 60.0kg and the skateboard's mass is 7.00kg.
The temperature of the surface of a certain star is 7500 K. Most hydrogen atoms at surface of the star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could ..
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