To reach the furthest distance, a water-gun must be aimed at a 45o angle into the air. Provide a written description on why 45o is the optimal angle for a projectile.

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane