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A bird stands on a dc electric transmission line carrying 2900 A. The line has 2.6×10^-5 resistance per meter, and the bird's feet are 3.9 cm apart. What is the potential difference between the bird's feet?
Express your answer to two significant figures and include the appropriate units.
A long, straight wire carries a current I1=3.8 A and is distance h=17.4 cm from a rectangular current loop that carries a current I2=1.8 A. DETERMINE the force exerted by the current loop on the wire
A 1.2 kg ball drops vertically onto a floor, hitting with a speed of 20 m s-1. It rebounds with a speed of 10 m s-1. What impulse acts on the ball during the contact
1 a hydrogen atom undergoes a transition from the n 12 state to the n 5 state. explain why it emits a photon during
A boat carrying a load of bricks is floating in a canal lock. One of the crew members throws a brick overboard, and it sinks. Does the level of the water in the lock rise or fall
A mass of 6 kg is moving at 31 m/s in the positive x direction. What is the magnitude of the velocity of the masses after the collision in m/s
A skier slides horizontally along the snow for a distance of 25 m before coming to rest. how fast was the skier going
Copper wire has a breaking stress of about 3×108 N/m2. What is the maximum load that can be hung from a copper wire of diameter 0.66 mm
1. a static magnetic field does no work on a charge moving parallel to the field.2. the direction of the magnetic field
A sample of an unknown material appears to weigh 280 N in air and 180 N when immersed in alcohol of specific gravity 0.700. What is the density of the material
1. a compact disk spins with angular velocity 43.5rads . the player is turned off and 2.95s later the cd has
A jogger jogs from one end to the other of a straight 300m track( from point A to point B) in 2.50 min and then turn around, What are the jogger's average speed and average velocities in going
A particle with positive charge q = 3.20e10-18 C moves with a velocity = (4i+ 4j -k ) m/s through a region where both a uniform magnetic field and a uniform electric field exist. Calculate the total force on the moving particle
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