Based on the strength of field at points (50, 0) and (-50, 0), what do you think the strength of the magnetic field will be at point (0, 50)?

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Why do astronauts in the space shuttle weigh less?