3 years ago

Help me... my science is horrible. I will mark brainliest, would prefer fast answer...

Physics

1 answer:

Elena L [17]3 years ago

7 0

vacuum walls: prevents heat loss by comduction and radiation

silvered walls prevent loss by radiation

ceramic base prevents loss by conduction

cap prevents by radiation and convection and reduces by comduction

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8. The mass of the sun is 1.99 x 1030 kilograms and its distance from Earth is 150 million kilometers (150 x 109 meters). What i

solmaris [256]

Answer:

$F=3.53\times 10^{22}\ N$

Explanation:

Given that,

Mass of the Sun, $m_1=1.99\times 10^{30}\ kg$

The distance of Sun from the Earth, $r=150\times 10^9\ m$

We know that,

The mass of the Earth, $m_2=6\times 10^{24}\ kg$

We need to find the gravitational force between the Sun and the Earth.

The formula between two masses is given by :

$F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{1.99\times 10^{30}\times 6\times 10^{24}}{(150\times 10^9)^2}\\\\F=3.53\times 10^{22}\ N$

So, the gravitational force between the Sun and the Earth is $3.53\times 10^{22}\ N$

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3 years ago

20 cubic inches of a gas with an absolute pressure of 5 psi is compressed until it’s press reaches 10 psi. What is the new volum

jek_recluse [69]

Let x be the new volume

10x = 20(5)
10x = 100
x = 10

Have a beautiful day!

5 0

3 years ago

PLEASE HELP!!

zhuklara [117]

Answer:

Sample Starting Temperature Ending Temperature Change in Temperature

50 g sand

50 g water

100 g water

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2 years ago

True or False: Litmus paper turns blue in bases and red in acids. <br>True <br>False

lutik1710 [3]

False because bases turn red litmus paper to blue and acids turn blue litmus paper red

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10 months ago

Which of the following terms refers to the shortest length from a starting

shutvik [7]

Answer:

A) Distance

Explanation:

The shortest distance that is represented as the measurement from one point to another is called distance.

It should not be confused with displacement as it represents the sum of the distances travelled by a body or person.

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3 years ago