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A 55g horizontal metal bar, 10cm long, is free to slide up and down between two tall, vertical metal rods that are 10cm apart. A 6.0×10^?2T magnetic field is directed perpendicular to the plane of the rods. The bar is raised to near the top of the rods, and a 1.0 ohms resistor is connected across the two rods at the top. Then the bar is dropped. What is the terminal speed (m/s) at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times.
Air in a closed piston-cylinder device arranged to maintain a pressure of 400 kPa is heated from 27 ° C to 227 ° C. What is the final air volume
A vertical spring stretches 4.2 cm when a 14-g object is hung from it. The object is replaced with a block of mass 22 g that oscillates up and down in simple harmonic motion. Calculate the period of motion. ____s . Use the given information to find t..
An explosion breaks an object, originally at rest, into two fragments. One fragment acquires twice the kinetic energy of the other. What is the ratio of the masses
The launching mechanism of a toy gun consists of a spring ofunknown spring constant. determine the speed of the projectile as it moves through the equilibrium position ofthe spring
A spherical 3-mi diameter comet impacts the earth with a velocity of 20 mi/s. Calculate the amount of heat released from the impact site
Clouds in the tropics tend to move from east to west. Consequently, which rhyme best explains a rainbow seen in the tropics.
A four-turn circular wire coil of radius 0.565 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.340 T. what is the average induced emf in the wire during this time
An electron is released from rest in a uniform electric field of magnitude 2.31 x 10^4 N/C. Calculate the acceleration of the electron
De Broglie postulated that the relationship ? = h/p is valid for relativistic particles. What is the de Broglie wavelength for a (relativistic) electron
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 53.0cm. What is the magnitude of the gravitational acceleration on this planet
A series RCL circuit includes a resistance of 298 ohm, an inductive reactance of 649 ohm, and a capacitive reactance of 415 ohm. The current in the circuit is 0.317 A. What is the voltage of the alternator?
A 6.0kg crate is pushed from the top of an incline and travels down the incline with an initial speed of 8m/s.find loss of potential energy
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