A student stands 100m in front of a large smooth wall and claps loudly. Another
student figures out the time for the sound to travel to the wall and back. If the
sound takes 0.58s for the sound to leave and return, what is the speed of the
Sound?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Which of the following will cause an induced current in a coil of wire? the constant field of the earth passing through the coil a magnet resting near the coil a magnet being moved into or out of the coil a wire carrying a constant current near the coil