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MatroZZZ [7]
2 years ago
10

Vector A has a magnitude of 63 units and points west, while vector B has the same magnitude and points due south. Find the magni

tude and direction of a) A + B and b) A - B. Specify the directions relative due west.​
Physics
1 answer:
ozzi2 years ago
4 0

Given :

Vector A has a magnitude of 63 units and points west, while vector B has the same magnitude and points due south.

To Find :

The magnitude and direction of

a) A + B .

b) A - B.

Solution :

Let , direction in north is given by +j and east is given by +i .

So , A=-63i and B=63j

Now , A + B is given by :

A+B=-63i+63j

| A+B | = 63\sqrt{2}

Direction of A+B is 45° north of west .

Also , for A-B :

A-B=-63i-63j

|A-B|=63\sqrt{2}

Direction of A-B is 45° south of west .

( When two vector of same magnitude which are perpendicular to each other are added or subtracted the resultant is always 45° from each of them)

Hence , this is the required solution .

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Answer:

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Now, for the minimun time, we use the speed of light and the wavelength. For the n photons:

t=n*T=n*\frac{\lambda}{c} =20369*\frac{589nm}{3*10^{8}m/s}=4*10^{-11} second=40 ps

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3 years ago
Which formula correctly shows how to calculat the time taken, given the average velocity and the displacement
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We're so good here on Brainly, we can answer it
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Answer:

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