For this case we have the following equation:
h (t) = -16t ^ 2 + 36t + 36
By the time the rock hits the water we have:
-16t ^ 2 + 36t + 36 = 0
Solving the second degree polynomial we have:
t1 = -3/4
t2 = 3
We discard the negative root because we want to find the time.
Answer:
It will take for the rock to hit the water about:
t = 3 seconds
We know that pressure is equal to the relation between force applied perpendicular to a certain area.
![p=\dfrac{F}{A}](https://tex.z-dn.net/?f=p%3D%5Cdfrac%7BF%7D%7BA%7D)
If we express area we get:
![A=\dfrac{F}{p}](https://tex.z-dn.net/?f=A%3D%5Cdfrac%7BF%7D%7Bp%7D)
The pressure is decrease proportional to the area.
Hope this helps.
r3t40
I believe it’s just a “v” with an arrow above it.
Answer:
The outer planets are further away, larger and made up mostly of gas. The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars. After an asteroid belt comes the outer planets, Jupiter, Saturn, Uranus and Neptune.
Explanation: