You have given a balloon an electric charge by rubbing it on your head. You hold the balloon between two of your friends, Steve and Joey, at the location shown below.
Steve
Joey
5
Whose hair will stand up more from the charged balloon, Steve or Joey?
Steve
Joey
I don't know yet

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?