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3 years ago

True or false. gravity helps the Earth to stay in orbit around the sun

2 answers:

5 0

Very true, gravity it the main source to stay on the ground for us, in space gravitational pull keeps us in order with the sun as it does with the other planets.

gogolik [260]3 years ago

3 0

Answer:

The answer would be true

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What did copernicus say about the motion of the sun?.

eimsori [14]

the sun was stationary in the center of the universe and the earth revolved around it....

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2 years ago

When the distance increases, the electrostatic force____; we call this relationship proportional

Alik [6]

Answer:

I think decreases inversely

Explanation:

the third

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2 years ago

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If the baseball and the plastic ball were moving at the same speed which ball would hit a bat harder

Lerok [7]

A baseball would hit the bat harder. This is because the baseball is a lot heavier and more dense than the plastic ball. The keyword that you're looking for is density. The baseball is dense.

7 0

3 years ago

As part

umka21 [38]

Answer:

Part a)

$a = 3.68 m/s^2$

Part b)

$a = 11.8 m/s^2$

Explanation:

Part a)

For force conditions of two blocks we will have

$m_1g - T = m_1 a$

$T - m_2g = m_2 a$

now from above equations we have

$(m_1 - m_2) g = (m_1 + m_2) a$

$a = \frac{m_1 - m_2}{m_1 + m_2} g$

now we know that

$m_1 = \frac{908}{9.8} = 92.65 kg$

$m_2 = \frac{412}{9.8} = 42 kg$

now from above equation we have

$a = \frac{92.65 - 42}{92.65 + 42}(9.8)$

$a = 3.68 m/s^2$

Part b)

When heavier block is removed and F = 908 N is applied at the end of the string then we have

$F - mg = ma$

$908 - 412 = 42 a$

$a = 11.8 m/s^2$

8 0

3 years ago

How much heat is needed to melt 16.5kg of silver that is initially at 20*c?

zubka84 [21]

The Specific Heat Capacity of silver is 230 J/kgK, melting point is 961.8 C so the difference is 941.8K. Now we simply do q=230J/kgK*16.5kg*941.8K and that is 3 574 131 J

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3 years ago

True or false. gravity helps the Earth to stay in orbit around the sun​

True or false. gravity helps the Earth to stay in orbit around the sun