A 0.155 kg arrow is shot upward at 31.4 m/s. What is its kinetic
energy (KE) when it leaves the
bow?

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.

What is the frequency if a wave that pases a given pount 22 times in 2 seconds