Given a projectile's maximum horizontal range on level ground is r = vo^2sin 20/g, keeping
the initial velocity vo constant, at what launch angle or angles will the projectile land a
distance r/2 ? (2 points)

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.