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leonid [27]
3 years ago
12

Which action will increase the gravitational force between two objects?

Physics
2 answers:
schepotkina [342]3 years ago
8 0
The answer is D have a nice day!
vichka [17]3 years ago
3 0

Answer:

D. Moving the objects closer together

Explanation:

A.P.E.X.

took the quiz

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In the visible spectra of stars, absorption lines of hydrogen are produced when atoms are excited from n = 2 to higher levels (t
grigory [225]

Answer:

3. relatively high temperature, about 10,000 K, so that significant numbers of electrons are excited from the ground state, n = 1, to the first excited state, n = 2, but not too many of them have been ejected completely from the atoms

Explanation:

If hydrogen absorption lines are very strong in the visible spectrum of a particular star that means the population of electron in n = 2 is very high so on being exited they absorb radiation in Balmer series and give rise to absorption spectrum. The average temperature required to excite electron in hydrogen atom from n=1 to n = 2   is 10000K .

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3 years ago
What unit can be used to measure the mass of a grain of salt
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milligrams

Explanation:

The best unit to measure the mass of a grain of salt is the milligram.

This is about; a thousandth of a gram.

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It has a very low and small mass.

For substances like this, we use the milligram:

             1000milligram  = 1g

learn more:

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5 0
2 years ago
Which words describe the composition of the inner planets ? Select three options,
IgorLugansk [536]

Answer:a b c

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Date<br>Page<br>What are the advantages of alcohol<br>thermometric liquid?<br>​
Leya [2.2K]

Answer:

low freezing point. high vapour pressure.

<em>HOPE</em><em> </em><em>IT</em><em> </em><em>WILL</em><em> </em><em>HELP</em><em> </em><em>U</em><em>! </em><em>!</em><em>!</em><em>!</em><em>!</em><em>!</em>

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A rocket takes off from Earth. It travels 825km in 75 seconds. What is the
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