all the examples of rates except: a: the speed the wind is blowing. b:how many beats there are in a song. c:payment of 10$ per hour.​

If you put a helium-filled balloon in the refrigerator, what will happen?

Awhite-blue star is hotter than a red star. select the best answer from the choices provided true or false

)consider two positively charged particles, one of charge q0 (particle 0) fixed at the origin, and another of charge q1 (particle 1) fixed on the y-axis at (0,d1,0). what is the net force f⃗ on particle 0 due to particle 1?