East Formatu. Ne Highlight:
Post Test Structure and Properties of Matter
Select the correct answer.
Salt is dissolved in a flask of tap water. Distilling the mixture causes the salt to separate from the water. Which type of energy is required to
begin the distilling process?
A chemical energy
OB. electrical energy
OC mechanical energy (motion)
D. thermal energy
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Which force is most responsible for binding together an atom's protons and neutrons? electrostatic gravitational nuclear magnetic

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

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.