The current in a wire is 0.72 a. what is the charge that passes through the wire in 4 seconds

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?