For the fourth situation, you not only have a new ray, but the line with which I am curious about the intersection has moved. Where does the ray, which comes in between the center and the focal point, cross the new dashed line?

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

What are atoms of the same element with varying number of neutrons