Two girl scouts are sitting in a large canoe on a still lake while at summer camp. the canoe happens to be oriented with the front of the canoe pointing due north. one of the girls is at the front of the canoe and the other is at the back of the canoe. the girl at the front walks to sit next to her friend at the back and sits down. what effect does this event have on the canoe?

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.

What happens when a rubber rod is rubbed with a piece of fur?

What is the increase in density of a medium due to wave travel?