Table sugar is not a mineral because

()it is in crystal for
()it is made of more than one element
()it is not made by a geologic process
()its chemical composition is always changing

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.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Which accounts for an increase in the temperature of a gas that is kept a constant volume