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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 150-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1680 N, Find the acceleration of the rocket
The current in a 120-V reading lamp is 2.5 A. If the cost of electrical energy is $0.090 per kilowatt-hour, how much does it cost to operate the light for an hour
q1. ricardo and jane are standing under a tree in the middle of a pasture. an argument ensues and they walk away in
At an amusement park, a swimmer uses a water slide to enterthe main pool. what is her speed at the bottom of the slide
A firm wants to determine the amount of frictional torque in their current line of grindstones, so they can redesign them to be more energy efficient. What is the angular acceleration of the grindstone
The angular momentum of a flywheel having arotational inertia of 0.240 kg m2 aboutits axis decreases from 3.70 to 1.30 kg m2/s in2.10 s. What is the average power of the flywheel
Two large parallel metal plates are uniformly and oppositely charged and the electric field between them is 7.6 x 10^6 N/C. What is the charge density on each plate
In January from Indiana, Andromeda is high in the sky at 6pm local time. (Note that local time is about 40 minutes later than Eastern Standard Time, Where would Andromeda be at midnight local time
A golf ball of mass 0.045 kg is hit off the tee at a speed of45 m/s. estimate the impulse imparted to the golf ball
Water flows at a speed of 1.7 m/s throughout a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14 cm. Treat the water as an idea fluid.
Tarzan, with a mass of 80.0 kg, wants to swing across a ravine on a vine, but the cliff on the far side of the ravine is 0.900 m higher than the cliff where Tarzan is now, How fast is Tarzan going at the bottom of his swing
Suppose that a police car on the highway is moving to the right at 29 m/s, while a speeder is coming up from almost directly behind at a speed of 31 m/s, which wave has the greater frequency
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