Two balls are released to ground at different heights. The first ball was released 1.5 s earlier than the second ball, and both balls arrived at the
ground 5.0 s after the first ball was released.
a) Calculate the different heights of the balls when there were released.
b) Compute the height of the first ball.

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?

Ivana walks 2km north then turns around and walks 3km south