Two rays of light from the same source destructively interfere if their path lengths differ by how much

Does baby oil have a high or low velocity?

Protons and neutrons are found within the nucleus of an atom

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.