(adsbygoogle = window.adsbygoogle || []).push({}); Which statements are true?

A) A vector can have zero magnitude if one of its components is not zero.

B) If a + b = c and a2 + b2 = c2, then the angle between a and b is 90°.

C) Two vectors having different magnitudes can be combined to give a vector sum of zero.

D) The magnitude of the difference between two vectors can be greater than the magnitude of at least one of the vectors.

E) If a + b = c and a2 + b2 < c2, then the angle between a and b is between 0° and 90°.

F) Three vectors which do not lie in the same plane can never give a vector sum of zero.

G) If a + b = c and a + b = c, then the angle between a and b is 180°.

I've got: FTFTTTF

I just need some help translating what these questions mean

A: Components are the x,y,z components. Magnitude has to be > 0

B: Is it a length or a vector? I know that since they're perpendicular two vectors squared WILL equal...

C: Obviously if one is shorter than the other it can't undo the other completely

D: Opposite directions. True

E: I'm not sure. But I think this is true... unless than angle can be greater than 90?

F: True

G: In the question the first a + b = c is bold and the second is italics, that's the only difference between them. I highly doubt it change their meaning, other than that I think G is false.

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# Homework Help: Just some language

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