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12345 [234]
3 years ago
12

(b) Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a c

onstant rate of 1 m/s, how fast is the area of the spill increasing when the radius is 26 m?

Physics
2 answers:
weeeeeb [17]3 years ago
8 0

Explanation:

Below is an attachment containing the solution.

Volgvan3 years ago
4 0

Answer:

163.4 or 52\pi m2/s

Explanation:

The rate of change of the radius is 1 m/s

\dfrac{dr}{dt}=1

The area of a circle is

A=\pi r^2

We differentiate this to get the rate of change of the area with the radius:

\dfrac{dA}{dr}=2\pi r

The rate of change of the area is

\dfrac{dA}{dt} = \dfrac{dA}{dr}\times\dfrac{dr}{dt}=2\pi r \times1 = 2\pi r

At r = 26 m,

\dfrac{dA}{dt}=2\pi \times26=52\pi=163.4

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You prepare tea with 0.250 kg of water at 85.0 ºC and let it cool down to room temperature (20.0 ºC) before drinking it. Essenti
vladimir2022 [97]

Answer:

232 J/K

Explanation:

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pychu [463]
True, recycling allows products to be reused which saves alot the natural resources that are used.
6 0
3 years ago
Read 2 more answers
Yea, gonna need some help. Thanks
natulia [17]

Answer:

t = 3.48 s

Explanation:

The time for the maximum height can be calculated by taking the derivative of height function with respect to time and making it equal to zero:

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Hey there!

Your correct answer would be (<span>Every mass exerts a gravitational force on every other mass.) It really doesn't matter the size in mass what so ever, gravity is stronger than mass, mass in nothing compared to mass. Therefor, gravity exert's mass on any object with any size of mass.

Your correct answer would be . . . 

</span>\boxed{\boxed{Every \ mass \ exerts \ a \ gravitational \ force \ on \ every \ other \ mass}}
<span>
Hope this helps.
~Jurgen
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