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Artyom0805 [142]
3 years ago
8

Consider the two vectors A = 3 î − ĵ and B = − î − 2 ĵ.

Physics
1 answer:
LUCKY_DIMON [66]3 years ago
6 0

Answer:

(a) A+B = 2i-3j

(B) A-B = 4i + j

Explanation:

We have given two vectors A = 3i-j and B = -1-2j

We have to find the two vectors that is A+B and A-B

(A) In first art we have calculate A+B for this we have to add simply vector A and v ector B

So A+B = 3i-j-i-2j = 2i-3j

(B) In this part we have to find A-B for this we have to simply subtract B from A so A-B = 3i-j-(-i-2j) =3i-j+i+2j =4i+j

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R = 1.69*10^{11} ohm

Explanation:

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resistance can be determine by using following relation

R = \frac{\rho}{2\pi L} ln\frac{ro}{ri}

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It is important to choose the appropriate magnification for your needs so that you can properly examine the specimen under study.

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