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zvonat [6]
3 years ago
14

Name two things that reduce friction

Chemistry
2 answers:
coldgirl [10]3 years ago
7 0
Oil and a smooth surface
photoshop1234 [79]3 years ago
5 0
Two ways are: Make the surfaces smoother and Lubrication<span> </span>
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Which of the following is most likely to use coal<br> as fuel?<br> Stove<br> Airplane<br> Factory
Lyrx [107]

Answer: factory

Explanation: a stove usually runs on electricity or gas, a plane doesnt use coal but factories do to keep it pumping

4 0
3 years ago
The light emitted from a flame is produced when electrons in an excited state
sesenic [268]
Electrons in their ground state when excited absorb energy and move to higher energy states.
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Emission is when electrons release that absorbed energy and move to a lower energy state
This release of energy results in emission of light from a flame
The correct answer is
Release energy as they move to lower energy states
7 0
3 years ago
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How do you scientist learn about the moon in other planets
Citrus2011 [14]

Answer:NASA's Lunar Atmosphere and Dust Environment probe, for instance, orbits the moon and collects information about its atmosphere and surface. This important data can help scientists learn more about moons, asteroids and other objects in the solar system.

Explanation:

8 0
3 years ago
Energy leaves the sun as light from region called the?
tino4ka555 [31]
Late answer:
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4 0
3 years ago
I’m very confused on how to solve this
Bond [772]
Recall that density is Mass/Volume. We are given the mL of liquid which is volume so all we need is mass now. We are given the mass of the granulated cylinder both with and without the liquid, so if we subtract them, we can get the mass of the liquid by itself. So, 136.08-105.56= 30.52g. This is the mass of the liquid. We now have all we need to find the density. So, let’s plug these into the density formula. 30.52g/45.4mL= 0.672 g/mL. This is our final answer since the problem requests the answer in g/mL, but be careful, because some problems in the future may ask for g/L requiring unit conversions. Also note that 30.52 was 4 sigfigs and 45.4 was 3 sigfigs, and so dividing them required an answer that was 3 sigfigs as well, hence why the answer is in the thousandths place
4 0
3 years ago
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