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Shalnov [3]
3 years ago
10

A picture shows the letter "O" made from a piece of plastic. Where is the center of gravity? USE THE DEFINITION OF THE CENTER OF

GRAVITY to help explain how you could prove to someone why you put your dot where you did.
Physics
1 answer:
Paha777 [63]3 years ago
6 0
The center of gravity is at the center of the O(assuming it's a perfect circle) because a perfect circle has a constant radius, so the object is equidistant to the center. This means that the force of gravity on all aspects are equal. Say if you picked a point on the ring. There will always be another point opposite to that point where the gravity of that point counteracts against the gravity o the ring that you picked.
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Answer:

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Explanation:

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Red light has the longest wavelength and is least scattered whereas Violet light with the shortest wavelength is the one to get most scattered and as we move far from bright spot at the center, there is an increase in the wavelength of light, thus the color that corresponds to the closest one is Violet with the shortest wavelength in the band.

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Answer:

W = 285.62 N

Explanation:

It is given that,

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We need to find the component of her weight that is along her direction of motion.

The component along her direction of motion is shown in attached figure. It means

W_y=mg\sin\theta\\\\W_y=55\times 9.8\times \sin(32)\\\\W_y=285.62\ N

So, the component of her weight that is along her direction of motion is 285.62 N.

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