Ihave 6 surfaces 2 of my surfaces are smaller than the other i can stand up tall what shape am i

The density of a liquid could be found by using

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.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?