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Agata [3.3K]
3 years ago
13

How do modern scientist describe the make up of matter

Physics
1 answer:
lbvjy [14]3 years ago
4 0

The matter is a collection or composition of extremely small particles called "Atoms".

<u>Explanation</u>:

  • The matter is anything that has mass and which utilizes space by having volume.
  • Modern scientists describe the makeup of matter as a collection of tiny substances called atoms.
  • Matter can either be in solid, liquid, or gaseous state and even appear in plasma form.
  • Matter can neither be created nor be destroyed but only transferred from one form to the other.
  • Atoms are composed protons, neutrons and electrons. The protons and neutrons are contained in the nucleus, while the electrons orbit around the nucleus of the atom.
  • Protons are positively charged, neutrons are neutral and electrons are negative.
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Light incident on a lake surface is partly reflected and partly refracted.What is the differences between the reflected ray and
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2 years ago
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Calculate the kinetic energy in joules of a 1,500 kg car that is moving at a speed of 42 km/h
Rzqust [24]
Data:
KE (Kinetic Energy) = ? (Joule)
m (mass) = 1500 Kg 
v (speed) = 42 Km/h
converting to m/s (42 / 3.6), we have: v (speed) = 11.6 m/s

Formula:
K_{E} =   \frac{1}{2} m*v^2

Solving:
K_{E} = \frac{1}{2} m*v^2
K_{E} =  \frac{1}{2} *1500*(11.6)^2
K_{E} = \frac{1}{2} *1500*134.56
K_{E} =  \frac{201840}{2}
\boxed{\boxed{K_{E} = 100920\:Joule}}\end{array}}\qquad\quad\checkmark





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Answer:

B

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the bottom meniscus may cause a wrong reading due to refraction of light

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