3 years ago

The model of the universe that the earth is in the center is called

Physics

1 answer:

erastovalidia [21]3 years ago

3 0

It is the Geocentrism or the ptolemaic system
any of the 2 above

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Debbie plotted a graph to show how the mass of aluminium rivets affected the distance the cup moved down.

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3 years ago

A light ray strikes a flat, smooth, reflecting surface at an angle of 80° to the normal. What angle does

charle [14.2K]

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80 angle of incidence=angle of reflection

Explanation:

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You are standing on the SCALE<br> The scale is on the floor.<br> What are the forces on the SCALE?

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The Normal and Gravitational Force

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irakobra [83]

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3 years ago

A body weights 50 N in air and 45 N when wholly immersed in water calculate (i) the loss in weight of the body in water (ii) the

Lelechka [254]

Answer:

$difference \: in \: weight = 150n - 100n = 50n$

Now,buyantant force

$difference \: in \: weight \: = volume(body) \times density \: of \: water \: \times g$

so;

$50 = {v}^{b} \times 1 \times {10}^{3} \times 9.8m {s}^{2}$

${v}^{b} = \frac{50}{1000 } \times 9.8$

$= \frac{50}{9800}$

$= 0.0051$

Now,

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$density = \frac{weght}{volume}$

$= \frac{150}{0.0051} \times 9.8 \\ x = 3000$

And now,

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$= \frac{3000}{1000}$

$= 3$

Hence that,specific density of a given body is 3

please mark me as brainliest, please

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3 years ago