2. Observe: What is the initial value of vy? 57.45 m/s 3. Calculate: The vertical velocity of a projectile is found with the equation: Vy - Vylinitial) – gt.
A. What will be the value of Vy when the ball is at the top of its trajectory?!
B. Using the equation above, solve for t when Vy = 0.0 m/s, Vy(initial) = 57.45 m/s, and
g = 9.81 m/s?
C. Now use the same method to determine how long it will take the ball to fall from its
maximum height to the ground:
D. Based on your answers to B and C, how long will the ball spend in the air?

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

Milliseconds. . . . . .

Ibelieve the answer you're looking for is