After a snow storm, Juliet steps out onto narrow balcony and, from a point 7.0 m above the ground, throws
a snowball at Romeo at an angle of
20° above
the horizontal, Down below, Romeo catches the
ball 1.3 seconds later when It is 1.0 m
above
the ground
a) what was the magnitude of the snowball's initial
Velocity?
b) At what distance horizontally is Romeo from the
balcony?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

Plss anybody know how to do this? ? i need the answers from a through d

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.