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kolbaska11 [484]
2 years ago
5

if the magntidude of the sum and difference of two non zero vectors A and B is equal. what can we say about the two vectors ​

Physics
1 answer:
Ivanshal [37]2 years ago
7 0

Answer:

A + B = B - A

The above equation must hold for the sum and difference to be zero.

How can one of the vectors not be zero?????

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Please help me and thank you
fredd [130]

Answer:

536.56 m/s

Explanation:

We'll begin by calculating the momentum of the Porsche. This can be obtained as follow:

Mass (m) of Porsche = 1361 kg

Velocity (v) of Porsche = 26.82 m/s

Momentum of Porsche =?

Momentum = mass × velocity

Momentum = 1361 × 26.82

Momentum of Porsche = 36502.02 Kgm/s

Finally, we shall determine the velocity you need to be running with in order to have the same momentum as the Porsche. This can be obtained as follow:

Your Mass = 68.03 kg

Your Momentum = Momentum of Porsche = 36502.02 Kgm/s

Your velocity =?

Momentum = mass × velocity

36502.02 = 68.03 × velocity

Divide both side by 68.03

Velocity = 36502.02 / 68.03

Velocity = 536.56 m/s

Thus you must be running with a speed of 536.56 m/s in order to have the same momentum as Porsche.

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2 years ago
Suppose that two sources of sound produce waves of the same exact amplitude and frequency, but are out of phase by one-half of a
tia_tia [17]

Answer:

option D is right

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8 0
3 years ago
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Calculate the focal length of a lens needed by a woman whose near point is 50cm from her eyes, assuming the least distance of di
son4ous [18]

The focal length of a lens needed by a woman whose near point is 50cm from her eyes is 50cm.

To find the answer, we have to know about the focal length of correcting lens.

<h3>How to find the focal length of correcting lens?</h3>
  • If x is the distance of nearest point of the defective eye and D is the least distance of distinct vision, then, the expression for focal length of the correcting lens will be,

                           f=\frac{XD}{X-D}

  • It is given that, the woman whose near point is 50cm from her eyes, assuming the least distance of distinct vision for a normal eye is 25cm. Thus, the focal length will be,

                       f=\frac{50*25}{50-25} =50cm.

Thus, we can conclude that, the focal length of a lens needed by a woman whose near point is 50cm from her eyes is 50cm.

Learn more about the focal length here:

brainly.com/question/27915592

#SPJ9

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1 year ago
Medical imaging would be best suited for which situation(s)?
zhuklara [117]
The two that require medical imaging would be
<span>C)I and III </span>
5 0
3 years ago
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What is 1meter length?
enot [183]

1.094 yards bc for for an approximate result, multiply the length value by 1.094

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