If salt water was heated the water turns into steam while the salt remains

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Current from a charged capacitor lights a bulb. as time goes on the brightness of the