6. A sound wave travels at 343 m/s it covers a
distance of 50 meters what is the frequency?

Blue light reflected from the ball enters human eyes.

Electrical charge is measured in coulomb.(c). the amount of an electrical charge that moves in a circuit depends on the current flow and how long it flows for. a current of 10 a flows for 30 s,then 10 x=300 coulombs of electrical charge moves

Anton because carbon dioxide and water are used with light energy to produce glucose sugar and oxygen gas.

I’m not sure about this question