The temperature of the cooling water as it leaves the hot engine of an automobile is 240 °f. after it passes through the radiator it has a temperature of 175 °f. calculate the amount of heat transferred from the engine to the surroundings by one gallon of water with a specific heat of 4.184 j/g °c. (answer in kj)

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.

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.