Plz help!! I really need this otherwise i’ll fail physcis plzzz help! I’ll mark brainslist!!! Plz help! I need 5 letters, for you you can use each letters twice if needed! Plz help

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.

What are similarities and differences between refraction, reflection, diffraction and absorption?

In what direction does an applied force move an object