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3 years ago

15

Please help me. Show work

1 answer:

Goryan [66]3 years ago

7 0

What hell there is nothings ??

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A fluid moves through a tube of length 1 meter and radius r=0.006±0.00025 meters under a pressure p=4⋅105±2000 pascals, at a rat

iris [78.8K]

Answer:

Maximum error for viscosity is 17.14%

Step-by-step explanation:

We know that everything is changing with respect to the time, "r" is changing with respect to the time, and also "p" just "v" will not change with the time according to the information given, so we can find the implicit derivative with respect to the time, and since

$n = (\frac{\pi}{8}) (\frac{pr^4}{v})\\$

The implicit derivative with respect to the time would be

$\frac{dn}{dt} = \frac{\pi}{8} ( \frac{r^4}{v} \frac{dp}{dt} + \frac{4pr^3}{v}\frac{dr}{dt} )$

If we multiply everything by dt we get

$dn = \frac{\pi}{8} ( \frac{r^4}{v} dp + \frac{4pr^3}{v} dr})$

Remember that the error is given by $\frac{dn}{n}$ therefore doing some algebra we get that

$\frac{dn}{n} = 4 \frac{dr}{r} + \frac{dp}{p}$

Since, r = 0.006 , dr = 0.00025 , p = 4*105 , dp = 2000 we get that

$\frac{dn}{n} = 0.1714$

Which means that the maximum error for viscosity is 17.14%.

5 0

3 years ago

If x = 3(y − 2z), find the value of x when y = 5 and z = 2. (i need this fast pls)

lesantik [10]

3 ( 5-2(2) 5-4 =1 1×3 =3 ! it's confusing in this format bit the awnser should be 3

3 0

3 years ago

The perimeter of a triangle is 92 centimeters. if two sides are equally long and the third side is 8 centimeters longer than the

Dmitry [639]

Nvm wait I read the question wrong. The real answer would be 28, 28, 36

6 0

4 years ago

Which statement is true for all parallelograms? (1 point)

Aloiza [94]

The opposite sides are equal in length.

Step-by-step explanation:

Opposite sides of a parallelogram must be congruent. This is a property of all parralelograms.

8 0

2 years ago

What is the slope of the line represented by the equation y = -2/5 -5x

vodka [1.7K]

Answer:

-5

Step-by-step explanation:

The slope is the coefficient of x in this case. That means that the answer is -5.

3 0

3 years ago