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?

An airplane is being pushed West by its engines with a force of 350 N as it starts to take off the runway at the Atlanta airport.

Which statement best explains acceleration? It is the total distance covered over a period of time. It is a change in velocity over a period of time. It is a change in displacement over a period of time.

What is the weight of a clown triggerfish?

Which part of the ear receives the signal from the eardrum? auditory nerve cochlea hammer ear canal

What is Electric potential energy in the easiest way to explain?!!

T=2π√ (l/g) is dimensionally correct

A penny falls from a windowsill which is 25.0 m above the sidewalk. How much time does a passerby on the sidewalk below have to move out of the way before the penny hits the ground?

Show that the Newton has the units of mass times acceleration.

Light travels at 150000000km from the sun to earth in 8 minutes. What speed is this in Km/s

Electricity problem (coulomb's law)