Please help! Will give brainliest! It’s My last.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.