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A 35 horizontal metal bar, 14 long, is free to slide up and down between two tall, vertical metal rods that are 14 apart. A 6.0×10-2 magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.2 resistor is connected across the two rods at the top. Then the bar is dropped. What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times.
A proton is initially at rest at a point where the potential is 507V. Sometime later the proton is at a point where the potential is 187V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy.
The frames S and S' are in the standard configeration with relativevelocity 0.8c along Ox. What are the time intervals between the two events
A car is driven east for a distance of 48km, then north for 32 km, and then in adirection 31°east of north for 25 km. Draw the vectordiagram and determine the total displacement of the car from itsstarting point.
answer true or false.a. the electric field and equipotential surfaces are perpendicularb. the force acting on a
A light beam is incident on heavy flint glass (n=1.65) at the polarizing angle. Angle of refraction is 31.22 degrees. determine the change in the intensity
A circuit consists of a resistor in series with an inductor and an ac generator that supplies an rms voltage of 115 V. Find the average power dissipated in the circuit
A projectile is launched at an angle of 33.69 degrees from the horizontal and lands down range at the same level. If the range of the projectile was 900 meters what was the maximum height
A transformer has an input coil with Nin = 400 turns and Nout = 1050 turns. If the voltage across the input coil has an amplitude of 2.1 V, what is the voltage across the output circuit?
A heat engine operating at maximum efficiency has an efficiency of 25%. The temperature of the cold reservoir is 300 K. What is the temperature of the hot reservoir
A golf ball is hit at ground level. The ball is observed to reach its maximum height above ground level 3.8 s after being hit, How high is the fence
A direction perpendicular to this initial direction
A plane, diving with constant speed at an angle of 40.7° with the vertical, releases a projectile at an altitude of 622 m. How far does the projectile travel horizontally during its flight
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