Hakeem throws a 11.5 g ball straight down from a height of 2.0 m. the ball strikes the floor at a speed of 7.8 m/s. what was the initial speed of the ball? assume that air resistance is negligible.

15) A 328-kg car moving at 19.1 m/s in the + x direction hits from behind a second car moving at 13 m/s in the same direction. If the second car has a mass of 790 kg and a speed of 15.

Match the environmental remedlation method to Its description. soil vapor extraction air sparging bioventing natural attenuation Air is bubbled through groundwater to remove volatile organic pollutants. Natural processes break down the pollutants.

Can an electron be found in an exact spot within an atom

How long would it take to drive to alpha centauri (4.4 light-years away) ?

Which force causes a soccer ball to take a curved path when it is kicked? rotation acceleration mass velocity

Three sound waves from the same source travel toward you across an open field. The three waves have high, medium, and low amplitudes. Which sound reaches you first? A. The high-amplitude wave B. The medium-amplitude wave C. The low-amplitude wave D.

Using what you know about newton's second law explain why a car with a lager mass use more fuel than a car with a smalle mass. assume both car dreive the same distance

Which quantities have both a magnitude and direction

Which is a possible disadvantage of using flowing water to produce electricity?

What country was bombed in world was 2 by the us