Starting with the Ohm’s law derive the equation v=μE. All variables carry their usual meanings. Explicitly state the meaning of all variables used in the derivation?

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?

What is the magnitude of the resultant vector? round your answer to the nearest tenth. 5 m 13 m

In an exothermic chemical reaction the energy gained by the surroundings must be the energy lost by the reaction