Answer:
900
Explanation:
v = s / t = 9000m / 10 s = 900m/s
4 for sure because you dont want anything spilling on you or others that is harmful.
Are you referring to the fact that water is a compound while hydrogen is an element? If I'm wrong just comment and clarify and I can edit it, I don't even know what kind of unit you're in. :)
I don’t think I’m right but I want to say 500 m/s
Answer:
I dont know spanish... and i live in Cali... wow....
Explanation: