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kipiarov [429]
2 years ago
14

What is the minimum time that a warm up should last

Physics
2 answers:
Vladimir [108]2 years ago
7 0
5 minutes is the minimum time
djyliett [7]2 years ago
7 0
At minimum, a warm up stretch or exercise should last about 5 minutes. this way your muscles are well prepared 
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artcher [175]
Having your space clean. have on close toed shoes. have your hair pulled back into a ponytail. keep ur work space clean. wear gloves and goggles. do not have on droopy clothes. follow the steps on the board and double check them. 
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3 years ago
If two vectors are perpendicular to each other, how should you add them?
Aleksandr [31]

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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3 years ago
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Answer:

Eco-friendly

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Tina wants to install one unit that both heats and cools. Which should Tina install?
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What real-world examples show no work being done? Can you think of examples other than resisting the force of gravity?
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-- pushing on a brick wall

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