How could you increase the total energy of a system consisting of a jar full of water? A.) Allow the water to evaporate

B.) Place the jar in a freezer

C.) Leave the jar in a dark closet

D.) Heat the jar in a microwave oven

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.

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car