Which statements best describe X-rays? Check all that apply.

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.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant