A. nucleus
hope this helps if so please mark me brianliest
Answer:
The sun is the center of the solar system.
The planets revolve around the sun.
<span>Your equation for the height of the stone at any time is h(t) = -16t2<span> + 128t + 32 .
From your equation, we can tell that you're defining the upward direction as
positive. We can also tell that you threw the stone upward, with an initial speed
as it left your hand of 128 feet per second, about 87 miles per hour ... a mighty toss indeed, and I think there's a man from the Chicago Cubs waiting outside
who'd like to talk to you.
Anyway, When the stone splashes into the water, h(t) = 0 .
</span></span>
<span>-16t²<span> + 128t + 32 = 0</span></span>
Divide each side by -16 :
t² - 8t - 2 = 0
I don't see any easy way to factor the expression on the left,
so I have to use the quadratic formula to solve this equation.
t = 4 plus and minus √18 .
t = +8.24 seconds
t = -0.24 second
Mathematically, both numbers are valid solutions.But when you apply
the equation to a real world situation, only the positive 't' makes sense.
So <u> t = 8.24 seconds</u>.
Tectonics is a science that studies tectonic plates. Earth's surface is made of many tectonic plates which move relative to each other. This movement causes earthquakes and can lead to forming a mountain or change in environment.
To determine if Moon has tectonic plates scientists observed Moon's surface for a long time. They were searching for a change in height of a mountins or any changes in surface. If they found this it would mean that Moon has tectonic plates just the Earth does. Only changes they observed were those created by meteorites.
Definitive confirmation that Moon does not have tectonic plates came when people landed on it. Scientific equipment they brought and later the rover that were sent confirmed there are no moonquakes and this led to a conclusion that there are no tectonic plates.
<span>I believe the that it is impossible for him to cover the whole room. Because SA of the room is 65.86 and the SA of a piece of paper is .0588.
And by multiplying it by 480 we get 28.24 and that what makes it impossible to cover the whole room.</span>