Plasma is the most abundant state of matter in the universe

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

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.

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?