An object with a mass of 2000 g accelerates 8.3m/s2 when an unknown force is applied to it what is the amount of the force

What is special about a dc circuit ?

If a simple machine reduces the strength of a force, what must be increased?

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up