Physics, 12.10.2019 19:50 LilFabeOMM8397
You can find electric power lines under the ground by looking for magnetic fields at ground level. this is best explained by which of these statements?
a) all wires have magnetic materials in them.
b) an electric current in a wire produces a magnetic field.
c) the power company puts magnets to find the power lines.
d) the iron in the ground is disturbed by the power lines creating magnetic fields
Answers: 3
Physics, 22.06.2019 07:30
The slope of a velocity time graph over any interval of time gives the during that interval
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Physics, 22.06.2019 18:30
An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?
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Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
Answers: 2
You can find electric power lines under the ground by looking for magnetic fields at ground level. t...
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