3 years ago

Select all that apply. Which of the following energy sources are in someway derived from the sun?

Physics

2 answers:

Bingel [31]3 years ago

8 0

We need the rest of the question

vova2212 [387]3 years ago

5 0

Answer:

Solar Energy

Explanation:

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jek_recluse [69]

Explanation:

Given that,

Force, $F=((-8i)+6j)\ N$

Position of the particle, $r=(3i+4j)\ m$

(a) The toque on a particle about the origin is given by :

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$\tau=((-8i)+6j) \times (3i+4j)$

Taking the cross product of above two vectors, we get the value of torque as :

$\tau=(0+0-50k)\ N-m$

(b) Let $\theta$ is the angle between r and F. The angle between two vectors is given by :

$cos\theta=\dfrac{r.F}{|r|.|F|}$

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$cos\theta=\dfrac{0}{50}$

$\theta=90^{\circ}$

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3 years ago