A coal power station transfers 3.0×10^12 J by heat from burning coal and transfers 1.5×10^12 J by heat into the environment. What is the efficiency of the power station?

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.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?