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A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. The wire has radius r = 4.3 10-4 m and is made of copper having a density of ? = 8960 kg/m3. The gun consists of rails of length L = 1.0 m in a constant magnetic field of magnitude B = 1.8 T, oriented perpendicular to the plane defined by the rails. The wire forms an electrical connection across the rails at one end of the rails. When triggered, a current of 1.10 104 A flows through the wire, which accelerates the wire along the rails. Calculate the final speed of the wire as it leaves the rails. (Neglect friction.) 1
6.00 mole of nitrogen (N2) gas and 6.00 mole of argon (Ar) gas are in separate, equal-sized, insulated containers at the same temperature. What is the change in entropy of the environment
A 304 turn solenoid has a radius of 5.00 cm and a length of 20.0 cm, Find the inductance of the solenoid
Before starting this problem, review Conceptual. The force vector A has the magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 101 N and points 72.9 ° north of east.
The image behind a convex mirror (radius of curvature = 86 cm) is located 17 cm behind the mirror. Is the image upright or inverted
A circular coil of 144 turns has a radius of 1.54 cm. Find the maximum magnitude of the torque that the coil, carrying this current, can experience in a uniform 37.0 mT magnetic field
735 g of salt is placed into 400 mL of water and stirred thoroughly. How much salt dissolves into the water
A race car is making a U-turn at constant speed. The coefficient of friction between the tires and the track is ?s = 1.61. what is the maximum speed at which the car can turn without sliding
A compound microscope has an objective lens of focal length 15.0 mm and an eyepiece that gives an angular magnification of 5.00 for a final image at infinity, What is the total magnification of the microscope
A person is nearsighted and can clearly focus on objects that are no farther than 2.6 m away from her eyes. What is the focal length of the borrowed glasses
q1. if you place a 0.0001-c charge halfway between the terminals of a common 9-v battery 5 mm apart what force will
1. you are hired by an industry that owns a building with a floor area of 6 m by 10 m and a ceiling height of 4 m. the
A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.48 x10^7 km. Radio waves travel at the speed of light (3.00 x10^8 m/s). How many seconds does it take for the signal to reach the Earth.
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