A particle moves according to the equation x = 9t2, where x is in meters and t is in seconds. (a) Find the average velocity for the time interval from 1.85 s to 2.90 s. m/s (b) Find the average velocity for the time interval from 1.85 s to 2.15 s. m/s

Which of the following describes something an engineer would probably do first when developing new technology meant to reduce ocean pollution? o a. evaluate the benefits and challenges of using certain chemicals to purify water. o b. research new scientific findings in regard to ocean cleanup. o c. identify the need to reduce ocean pollution. o d. research what has been done in the past to clean up oceanic oil residue.

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering