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ELEN [110]
2 years ago
15

I really need help, i don’t understand this at all

Chemistry
1 answer:
kirill [66]2 years ago
6 0

Answer:

CaO - inorganic

C₂H₄(OH)₂ - organic

Ca(OH)₂ - inorganic

CH₄ - organic

NaCl - inorganic

C₃H₈ - organic

Explanation:

Organic compounds have carbon (C) in it.

For example, CaO has calcium and oxygen, but no carbon so it's an inorganic compound.  However, C₂H₄(OH)₂ does have carbon, making it an organic compound.

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D. Gases

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What percentage of all winter weather related injuries are from freezing precipitation?
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HELLPPPPP 5th grade math
irakobra [83]

Energy inputs, outputs and losses are summarized below:

  1. Input - Chemical energy/Output - Luminous energy/Losses - Hystheresis-related dissipation.
  2. Input - Fluid energy, heat/Output - Translational mechanical energy/Losses - Waste energy.
  3. Input - Translational mechanical energy/Output - Rotational mechanical energy/Losses - Friction-related work.
  4. Input - Electric energy/Output - Translational and rotational mechanical energy/Losses - Power dissipation, drag-related work.
  5. Input - Translational and rotational mechanical energy/Output - Translational mechanical energy/Losses - Friction-related work, drag-related work.
  6. Input - Fluid energy, heat/Output - Translational and rotational mechanical energy/Losses - Waste energy, friction-related work and drag-related work.

<h2>Procedure - Application of the principle of energy conservation</h2><h2 /><h3>Introduction</h3><h3 />

In this question we must apply the definition of the principle of energy conservation to each case, understanding what kind of <em>energy</em> inputs (E_{in}) and outputs exists (E_{out}, E_{loss}).

We proceed to apply a simplified scheme, on the assumption that each system works at <em>steady</em> state, in which we shall construct each answer:

E_{in} - E_{out} - E_{l} = 0 (1)

Where:

  • E_{in} - Energy input.
  • E_{out} - Energy output.
  • E_{l} - Energy losses.

<h3>Case analysis</h3>

Now we proceed to summarize the inputs, outputs and losses for each case:

<h3><em>Flashlight</em></h3>

Input - Chemical energy (battery)/Output - Luminous energy (screen)/Losses - Hystheresis-related dissipation (battery)

<h3><em>Hot air balloon</em></h3>

Input - Fluid energy (fuel), heat (ignition)/Output - Translational mechanical energy (Buoyancy force)/Losses - Waste energy (smog)

<h3><em>Water wheel</em></h3>

Input - Translational mechanical energy (water flow)/Output - Rotational mechanical energy (wheel)/Losses - Friction-related work (bearings, etc)

<h3><em>Fan</em></h3>

Input - Electric energy (current)/Output - Translational and rotational mechanical energy  (wind)/Losses - Power dissipation (AC engine/cables), drag-related work (interaction between air and fan)

<h3><em>Hitting a golf ball</em></h3>

Input - Translational and rotational mechanical energy (arm)/Output - Translational mechanical energy (ball)/Losses - Friction-related work (Human body, interactions between player and ball), drag-related work (interactions between ball and air)

<h3><em>Motorcycle</em></h3>

<em></em>

Input - Fluid energy (fuel), heat (ignition)/Output - Translational and rotational mechanical energy (motorcycle and driver)/Losses - Waste energy (smog), friction-related work (interaction between tires and ground) and drag-related work (interactions between driver, motorcycle and surrounding air)

To learn more on energy conversion, we kindly invite to check this verified question: brainly.com/question/11234965

5 0
2 years ago
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