Alight year is a. the distance light travels in a year b. the distance travels in a day c. the amount of time it takes light to get to the nearest star

What is the measure of a change in an objects velocity?

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon

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?