Aball player hits a home run, and the baseball just clears a wall 21.0 m high located 130.0 m from home plate. the ball is hit at an angle of 35.0° to the horizontal, and air resistance is negligible. assume the ball is hit at a height of 1.0 m above the ground. a. what is the initial speed of the ball? b. how much time does it take for the ball to reach the wall? c. find the components of the velocity and the speed of the ball when it reaches the wall

An aircraft performs a maneuver called an "aileron roll." during this maneuver, the plane turns like a screw as it maintains a straight flight path, which sets the wings in circular motion. if it takes it 35 s to complete the circle and the wingspan of the plane is 11 m, what is the acceleration of the wing tip

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.