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Vladimir [108]
3 years ago
9

True or false a contour line indicates that all points on that line have equal elevation

Chemistry
1 answer:
Helga [31]3 years ago
3 0
True. Each contour line on a topographic map represent a certain elevation; the closer they are, the steeper the surface is. All points on a contour line are the same elevation.
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How efficient are electric engines
raketka [301]

Answer:

Electric engines have efficiencies of roughly 90% whilst combustion engines about 10% to 30%. This is because combustion engines emit much more heat, which is always energy that is not used as work, and thus increases inefficiency.

Explanation:

3 0
3 years ago
Please answer with an actual answer and not just put a random word ^-^
WARRIOR [948]

Which eclipse was modeled when the large ball was between the small ball and the light?

The model is a "Lunar Eclipse" (If it was talking about the earth, then yes, it is a lunar eclipse).

<u>                                                               </u>

Which eclipse was modeled when the small ball was between the large ball and the light?

The model is a "Solar Eclipse".

<u>                                                               </u>

What does the large ball represent?

The earth.

<u>                                                               </u>

What does the small ball represent?

The moon.

<u>                                                               </u>

What does the light source represent?

The sun.

Hope this helps!~ <3

(I can't draw so sorry.)

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6 0
2 years ago
3
atroni [7]

Answer:

(1) atomic numbers

Explanation:

The observed regularities in the properties of the elements on the periodic table are periodic functions of their atomic numbers.

  • Atomic number is the number of protons in an atom.
  • The periodic law states that "the properties of elements are a periodic function of their atomic number".
  • Elements on the periodic table are arranged based on the atomic numbers they contain.
  • The number of positively charged particles in an atom is the atomic number.
6 0
2 years ago
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Alinara [238K]

Answer:Amplitude in a longitudinal wave

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8 0
2 years ago
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ElenaW [278]

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Hope this helps ^^

4 0
2 years ago
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