Complete the sentences to describe the difference between speed and velocity. Speed describes how fast an object moves. Speed is described by
with
Velocity is described by
Tand time
and time. Velocity is speed

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.

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star