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ivolga24 [154]
3 years ago
12

What happens to the mass of a metal ball if its heated?

Physics
2 answers:
Lena [83]3 years ago
6 0
Nothing it will turn into a liquid and it will not weigh anything
erik [133]3 years ago
5 0
<span>Mass doesn't change when the temperature of the ball changes.
(Unless, of course, it gets so hot that it melts, and part of it falls off
and rolls under the table.)</span>
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If two vectors are perpendicular to each other, how should you add them?
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Let us consider two vectors A and B.

As per the question, the two vectors are perpendicular to each other.

Hence the angle between them  \theta =90 degree

We are asked to calculate the resultant of these two vectors.

As per parallelogram law of vector addition, the resultant of two vectors are-

                      R=\sqrt{A^{2}+ B^{2}+2ABcos\theta

                                =\sqrt{ A^{2}+ B^{2}+2AB*cos90}    [cos90=0]

                                =\sqrt{ A^{2}+ B^{2}

This is the way by which we can add two perpendicular vectors.


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