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svet-max [94.6K]
3 years ago
12

Which science deals most with energy and

Physics
1 answer:
ss7ja [257]3 years ago
6 0

Answer:

C. Physics

Explanation:

Both energy and forces are all in the tier of Physics.

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Recall that the dot product between two vectors \mathbf a and \mathbf b satisfies

\mathbf a\cdot\mathbf b=\|\mathbf a\|\|\mathbf b\|\cos\theta

where \|\mathbf x\| denotes the norm of a vector \mathbf x, and \theta is the angle between the two vectors.

So if \mathbf a=(2,3) and \mathbf b=(4,2), then

(2,3)\cdot(4,2)=\|(2,3)\|\|(4,2)\|\cos\theta

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\implies\cos\theta=\dfrac{14}{\sqrt{13}\sqrt{20}}

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3 years ago
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mash [69]
Facing disagreement forces scientists to prove their theories more conclusively.
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Assume that on a physics diagram, you saw a croquet ball moving along the grass and above it was an arrow labeled "3.5 m/s" that
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