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Arada [10]
3 years ago
9

Humans protect themselves from natural disasters by all of the following except

Physics
1 answer:
jeyben [28]3 years ago
4 0
I'm pretty sure it's sunscreen
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Which of the following can carry light waves but not sound waves
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A small ball is attached to one end of a rigid rod with negligible mass. The ball and the rod revolve in a horizontal circle wit
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3 years ago
What is the magnitude of the Box's Acceleration?​
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<h3>Further explanation  </h3>

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∑F = m. a  

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m = mass = kg  

a = acceleration due to gravity, m / s²  

We plot the forces acting on the block (picture attached) according to the y-axis and the x-axis.

Because the motion of the block is in the same direction as the x-axis, ignoring the friction force with the inclined plane, then

\tt \sum F_x=m.a\\\\W.sin\theta=m.a\\\\mgsin\theta=m.a\\\\a=gsin\thet\theta

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