Aparallel-plate capacitor having circular plates of diameter d and a distance d apart stores energy u when it is connected across a fixed potential difference. if you want to triple the amount of energy stored in this capacitor by changing only the size of its plates, the diameter should be changed to:

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

In a good thermo flask the main cause of heat loss is