PLEASE HELP ME ANSWER THOSE TWO QUESTIONS 1) If the coefficient of kinetic friction between the box and the ramp is 0.298, what is the force of friction that opposes Cory and Kathy’s pushing forces?

2) Cory is pushing to the right (up the ramp) with a force of 379 N, and Kathy is pushing to the right with a force of 357 N. What is the magnitude of the acceleration of the box?

The differences between  a compression wave and a transverse wave?

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.

Why is there friction between objects