Wolpert explains that his group tried to reverse engineer how humans control movement. What makes this difficult, and what is the example he uses to demonstrate the concept?

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.

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

The mantle is made up of which structural zones?