A20n force is directed to the right and a 14 newton force is directed to the left and both act on a 3 kg mass. starting from rest, how far does the object move in the first second

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

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

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration