How many electrons flow across the x-ray tube when an exposure is made at 50mAs? 8.0 x 10^17
3.3 x 10^17
8.0 x 10^-21
17 electrons

An observer that stands still as the electron moves by him, will observe

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest