What would be the final size of a balloon, at -18*c, if the initial volume is 2.0 l and the initial temperature is 20*c?

The four giant gas points that are made primarily of lightweight elements are

What happens to the light rays when they hit the specimen?

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.