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mauri66
11.07.2019 •
Mathematics
Three small circles c1, c2, and c3, each with radius 0.1 and centered at the origin are in the xy-, yz-, and xz-planes, respectively. the circles are oriented counterclockwise when viewed from the positive z-, x-, and y-axes, respectively. a vector field f⃗ has circulation around c1 of 0.01π, around c2 of 0.4π, and around c3 of 5π. estimate curl( f. at the origin.
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Ответ:
Curl is defined as:
Which can be rewritten as:
This is because C1 lies on the xy plane and thus it's unit vector will be
.
By similar arguments the rest will follow too.
Now, area of each circle will be:![\pi \times (0.1)^2=0.01 \pi](/tpl/images/0076/2942/90bcf.png)
Therefore, Curl, as per our definition will be:
Thus, Curl=![40\pi \widehat{i}+500\pi \widehat{j} +\widehat{k}](/tpl/images/0076/2942/7004a.png)
Which is the required answer.
Ответ:
answer:
not sure
step-by-step explanation:
(50, 61, 72, 53, x} what value of x will give you a mean of 57? ?