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german
4 years ago
11

Atoms are mostly made of what

Physics
2 answers:
dimulka [17.4K]4 years ago
7 0

Atoms are made out of protons, neutrons, and electrons. I hope this helped! :-)

Olin [163]4 years ago
6 0
An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.
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What is the energy (in joules) of an ultraviolet photon with wavelength 110 nm?
Anon25 [30]

For light or ultraviolet, the formula for energy can be calculated using Planck’s equation. That is:

E =  h c / ʎ

where,

h is the Planck’s constant = 6.626 * 10^-34 m^2 kg / s

c is the speed of light = 3 * 10^8 m/s

ʎ is the wavelength of light = 110 nm = 110 x 10^-9 m

 

So calculating for energy E:

E = (6.626 * 10^-34 m^2 kg / s) * (3 * 10^8 m/s) / (110 x 10^-9 m)

E = 1.807 x 10^-18 J

5 0
3 years ago
a 12.0L container is filled with a gas to a pressure of 2660 torr at 0°C. At what temp. will the pressure inside the container b
Alexxx [7]
\frac{p1}{t1} = \frac{p2}{t2}

Pressure Law: constant volume

Convert all Temperatures to Kelvin

0°C= 273K

\frac{2660}{273} = \frac{3040}{t2} \\ \\ 3040 \times 273 = t2 \times 2660 \\ \\ 829920 \div 2660 = t2 \\ \\ t2 = 312

answer= 312Kelvin
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3 years ago
A 0.141 kg pinewood derby car is moving 1.33 m/s . What is its momentum?
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Answer:

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Explanation:

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