A water balloon is launched at 54.7° with respect to the ground at a velocity of 26m/s. Let's assume there is no air resistance during its trajectory. Part A) Find the horizontal and vertical components of the angled velocity vector.
Part B) How long does it take the balloon to reach its peal?
Part C) What is the maxmimum height reached by the water balloon?

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?