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Two identical long wires denoted A and B in Fig. are part of the electric circuit shown in the figure and therefore carry some currents. The wires are characterized by resistance per unit length, R0, have length L each and are spaced by distance a. What is the magnitude F of the force the wires exert on each other? Is it the force of attraction or repulsion? For the given resistance R of the external resistor, what should be the length L to achieve maximum possible F? What is that maximal Fmax?
A 10 ohm resistor and a 20 ohm resistor are connected in parallel. What is the equivalent resistance of this setup
a garden hose is attached to a water faucet on one end and a spray nozzle on the other end. the water faucet is turned
The minimum-wavelength X-ray produced by a certain X-ray tube is 0.283 nm. Find the minimum voltage applied to the tube
question1a house painter stands 3.0 m above the ground on a 5.0-m-long ladder that leans against a wall at a point4.7 m
Discuss why specific wavelengths need to be used to maximize detection ranges. For example, sound can not be detected with an optical sensor because sound is a longitudinal pressure wave and optical devices respond to EM radiation not sound waves.
What is the minimum coefficient of friction between tires and road that would allow cars to take the turn without sliding off the road.
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0205 s, through which time it experiences an acceleration of 220 m/s2. The ball is launched at an angle of 56.5° above the ground. Decide the ..
A sphere of radius R = 0.325 m and uniform charge density -151 nC/m3 lies at the center of a spherical, find the magnitude of the electric field at the following radial distances from the center of the charge distribution
1. a resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 0.157 mh and
Block A in Figure is given an initial velocity of 6 m/s up the incline. Declare of a block on a inclined plane.
A solenoid is designed to produce a magnetic field of 0.220 T at its center. It has radius 4.00 cm and length 100.0 cm, and the wire can carry a maximum currentof 8.0 A.
A toy train is pushed forward and released at x_0 = 2m with a speed of 2m/s. It rolls at a steady speed for 2s, and then one wheel begins to stick. The train comes to a stop 6m from the point at which it was released. What is the magnitude of trai..
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