Ask a New Question

Question

Oil is being poured into an inverted cone at a rate of 28π cubic meters per second. At the very instant, the height of the oil is 4 meters, the volume of the oil is 12π cubic meters. At what rate is the height of the oil changing?
4 years ago

Answers

oobleck
v = 1/3 πr^2 h
Since v=12π when h=4, r = 3
So, at all times, r = 3/4 h

So, v = 1/3 π (3/4 h)^2 h = 3/16 π h^3
dv/dt = 9/16 πh^2 dh/dt

so, when h=4,
28π = 9/16 π * 16 dh/dt
dh/dt = 28/9 m/s
4 years ago

Related Questions

why did alexander poured out drinking water offered to him in the desert? what was his goals and wha... If you have ever poured oil into a glass of water, you have seen that these two substances do not mi... 1. She poured water all over my painting and ruined it. (Can we use 'spoiled' instead of 'ruined'?)... one kilogram is poured into a cylandrical vase and fills it to a depth of 8 cm. find the cross secti... If water is poured into a cup at a rate of 1 cubic centimeter per second, how fast is the dept of th... 99e of oil are poured into a cylindrical drum 60cm in diameter solve with the value of 22\7for π 99l of oil is poured into a cylindrical drum 69cm in diameter. How deep is the oil in the drum? 3. I poured myself a cup of coffee in the teacher's lounge and took a sip. It wasn't Starbucks, but...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use