Adevice called a railgun uses the magnetic force on currents to launch projectiles at very high speeds. an idealized model of a railgun is illustrated in (figure 1 . a 1.2 v power supply is connected to two conducting rails. a segment of copper wire, in a region of uniform magnetic field, slides freely on the rails. the wire has a 0.85 m? resistance and a mass of 5.2 g . ignore the resistance of the rails. the power supply is switched on.
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Physics, 22.06.2019 16:00
Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not
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Physics, 22.06.2019 21:00
The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?
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Physics, 22.06.2019 21:10
The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.
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Physics, 23.06.2019 02:30
Intro: a solid ball of radius rb has a uniform charge density ρ. part a: what is the magnitude of the electric field e(r) at a distance r> rb from the center of the ball? express your answer in terms of ρ, rb, r, and ϵ0. part b: what is the magnitude of the electric field e(r) at a distance r express your answer in terms of ρ, rb, r, and ϵ0. part c: let e(r) represent the electric field due to the charged ball throughout all of space. which of the following statements about the electric field are true? check all that apply. e(0) = 0 e(rb)=0 limr→∞e(r)=0 the maximum electric field occurs when r=0 the maximum electric field occurs when r=rb the maximum electric field occurs as r→∞.
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Adevice called a railgun uses the magnetic force on currents to launch projectiles at very high spee...
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