An impatient motorist considers speeding as he travels between two cities. If the trip normally takes 2.80 h at an average speed of 100.0 km/h, how much time, in minutes, will be saved if he exceeds the speed
limit by 10.0 km/h?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Explain why you think this diagram shows what happened to the carbon in the biodome.

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.