Answer:Although any object in motion through space (for example a thrown baseball, kicked football, fired bullet, thrown arrow, stone released from catapult) are projectiles, they are commonly found in warfare and sports.
Explanation:
According to the Big Bang theory how long ago did the universe started??
13 to 15 billion years ago
It's true answer that interference is the evidence of the particle nature of light..
You can use them by analyzing the way you can solve it.
For each half reaction:
>Balance all except O and H
>Balance O using H2O
>balance H using H+
>balance charge using e-
Then multiply the half reactions to balance the e-
Add them back together