a baseball is travelling (+30 m/s) and is hit by a bat. it leaves the ball travelling (-40 m/s) what is the change in velocity

Which of the following waves travels the fastest? Light wave Matter wave Sound wave Water wave

A plant produces its own food through the process of photosynthesis. Which of the following materials do plants need in order to perform photosynthesis? A water and carbon dioxide B nitrogen and salt C phosphorus and oxygen D lipids and oxygen

If sodium has one valence electron and sulfur has six, how many sodium atoms are needed to form an ionic bond with sulfur? ITS TWO

A soccer player is running upfield at 10 m/s and comes to a stop in 3 seconds facing the same direction. What is his acceleration?

Green plants get their food through A. photosynthesis. B. digestion. C. respiration. D. osmosis.

The distance between two consecutive crests is 2.5 meters. Which characteristics of the wave does this distance represent?

Who first landed on the moon?

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium

A sound level of 96 dB is how many times as intense as one of 90 dB?

Which type of waves are whale songs in an ocean?