What is the efficiency of the bicycle if you put 10 joules of work into it and the bicycle does 8.5 joules

How does sound travel from your vocal cords to someone's ear?

If we compare the force of gravity to strong nuclear force, we could conclude that A. gravity is the weaker force; it is related to mass. B. gravity is the stronger force; it is related to distance. C.

You replace a 100 W incandescent lightbulb with a 22 W CFL bulb. If you leave your lights on 24 hours a day, how much energy are you saving each day by replacing this bulb?

In what direction does Trade Winds blow?

Gravitational force becomes (stronger/weaker) as mass increases

Some stars are so far away that their light hasn't reached Earth yet. A million years in the future, will the sources of light we see when we look up at night be the same? Why or Why not?

A sound wave travels through water. What best describes the direction of the water particles?

After heavy rains, the floodplain of a river can deposit sediment. The newly deposited soil is nutrient rich and would be good A. to use in a construction area. B. for growing vegetation and crops. C. for holding objects in the ground. D.

The mechanical vibrations triggered by sound waves are transduced into neural impulses by

What's the name of the "super continent" that broke up about 225 million years ago?