Two tuning forks are labeled Q and R and have different frequencies. Tuning fork Q has a frequency of 270 Hz and tuning fork R has a frequency of 540 Hz. Both tuning forks are struck at the same time on opposite sides of a physics lab to make sound waves. Which of the sounds, if either, will move faster through the air?

When a neutral charge, comes into contact with a positive charge they repel each other nothing happens the neutral charge becomes negative they attract each other

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

What is special about a dc circuit ?