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How long will it take a net charge of 2.50 C to pass through a cross-sectional area of wire so as to produce a steady current of 5.00 mA?
b) How many electrons passed this cross-sectional area in that amount of time?
An observer inside the building notices that it takes 0.15s for the tile to pass her window, whose height is 2.20m. How far above the top of this window is the roof.
A subway train starts from rest at a station and accelerates at a rate of 1.50m/s2 for 14.2s . It runs at constant speed for 69.6s and slows down at a rate of 3.51m/s2 until it stops at the next station. find total distance covered? express answer..
A 11.9-g mass is suspended 1.47 cm above a nonconducting flat plate, directly above an embedded charge of q. If the mass has the same charge, q, how much must q be so that the mass levitates (just floats, neither rising nor falling)? If the charge..
A professor's office door is 0.9 wide, 2.0 high, and 4 thick; has a mass of 25; and pivots on frictionless hinges. A "door closer" is attached to door and top of the door frame.
A race car has a mass of 701 kg. It starts from rest and travels 35.0 m in 3.0 s. The car is uniformly accelerated during the entire time. Illustrate what net force is exerted on it?
If light enters the window from outside at 23.0° to the normal, at what angle to normal does it exit the window on the inside.
Classically, the electron cannot pass through the barrier because E
A simple pendulum with mass m = 1.5 kg and length L = 2.41 m hangs from the ceiling, What is the magnitude of the radial acceleration as the pendulum passes through the equilibrium point
The speaker coil consists of 100 turns of wire, 2cm in diameter. The current in the speaker will be 1.6 A when the force on the speaker coil is 14.8 N. What strength magnetic field will give this force.
A battery having an emf of 11.10 V delivers 102 mA when connected to a 61.0 load. Find out the internal resistance of the battery.
plan a picutre showing Mary's displacment due to rowing, her displacemnet due to the river's motion, and her net displacement.
A picture shows a charge A 1.00 m above the origin and has a charge of 5.00 X10^-9, Find the magnitude and direction of the electrostatic force on charge B.
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