The wave speed completely depends on the characteristics and properties of the medium . . . physical properties for mechanical waves, electrical properties for electromagnedtic waves.
So if you want to change the speed of a wave, you have to change the medium . . . shoot it through some different kind of stuff. <em>(B) </em>
-is made mostly of hydrogen and helium.
-will eventually run out of fuel and die.
-creates energy through nuclear reactions
<span>c) what is the angle (relative to the horizontal) of the balls initial velocity?
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Answer:
c. Case iii
Explanation:
the ball will experience the largest change in case iii
