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2 years ago

Why does a planet stay in orbit?

Chemistry

2 answers:

I am Lyosha [343]2 years ago

6 0

Answer:

Gravity

Explanation:

A planet is gravitationally pulled around the sun.

Olenka [21]2 years ago

5 0

Answer:

beause of gravitys pull and because the atmosphere of the beyond lol also bcs this i hope this helps your welcome boo >3

Explanation:

Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

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. If this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be

mina [271]

Answer:

neutral

Explanation:

19+3=22

22 protons & 22 neutrons --> neutral net charge

3 0

2 years ago

The half-life for the radioactive decay of ce−141 is 32.5 days. if a sample has an activity of 3.8 μci after 162.5 d have elapse

Umnica [9.8K]

Answer : 121.5 μCi

Explanation : We have Ce-141 half life given as 32.5 days so if the activity is 3.8 μci after 162.5 days of time elapsed we have to find the initial activity.

We can use this formula;

 $\frac{N}{ N_{0} } = e^{-( \frac{0.693 X T_{2} }{T_{1}})$

3.8 / $N_{0}$ = $e^$ ((0.693 X 162.5 ) / 32.5) = 121.5

On solving we get, The initial activity as 121.5 μci

5 0

2 years ago

Read 2 more answers

Several bird species feed is a certain species of tree. Each bird species feeds in a different part of the tree. Which statement

Fofino [41]

Answer:

They have adapted to different niches.

Explanation:

due to competition

8 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!!

aivan3 [116]

Answer:

During the process of reaching thermal equilibrium heat is transferred between the object. heat is always transferred from the object at the higher temperature to the object with lower temperature. For a gas, the heat transfer is related to a change in temperature.

5 0

2 years ago

Water temperature is general cooler where?

Arada [10]

The temperature of water is cooler in deep oceans. The temperature there goes to 0°C to -3°C below which the water freezes. The water on the surface of the oceans and deep inside it varies because of the difference in energy of the two layers. One of the widest use of cold water is air conditioning. Cold water has a higher density than warm water. Water gets colder with profundity since chilly, salty sea water sinks to the base of the sea beds underneath the less dense hotter water close to the surface.

7 0

3 years ago