Amotorist is traveling at 25m/s. he is 100 m from a stop light when he sees it turns yellow. his reaction time, before stepping on the brake is 0.50 ses

a. what is the distance traveled during the reaction time?
b. what is the velocity of the motorist at the end of his reaction time?
c. what steady deceleration while braking will bring him to a stop right at the light?

In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?

How does convection affect our atmosphere? our layers of earth? our oceans?

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.