Answer:29.41 m/s
Explanation:
Given
Height of cliff 22.8 m
Height of river bank=2.4 m
width of river=60.0 m
Car can considered as projectile
Time travel to cover vertical distance=22.8-2.4=20.4 m



t=2.04 s
Range=60 m
Let u be the speed of car
ut=60

I'd say you haven't given us enough information to answer that.
When we talk about "change of state", we're talking about changes
between solid, liquid, and gas.
Tell us what the state of the water is, and what the states of the
hydrogen and oxygen are after the split, and we'll be able to
summarize the changes of state that may be taking place.
Answer:
1. Count the atoms of each element in the reactants and the products.
2. Use coefficients; place them in front of the compounds as needed.
Explanation: