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Elena-2011 [213]
2 years ago
12

Assume that your electrical power company gets its energy from a hydroelectric dam. Outline all of the energy changes that occur

red from the falling water that turned the generators at the dam to the hot air that was produced from your hair dryer this morning.
Chemistry
1 answer:
Rina8888 [55]2 years ago
5 0

Answer:

See explanation.

Explanation:

This isn't chemistry. Its physics. Kinetic energy (water) to electric energy (dam) as the hydroelectric dam works. Then, as the current travels from the plant to your crib, electric energy to heat energy (wire resistance). Then when you are using the dryer electric energy to heat energy (hot air) and sound energy (air particles vibrate due to the heat energy).

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Which of the following can cause muscle fatigue ?
dezoksy [38]

Answer:

The correct answer is -all of the above.

Explanation:

Muscle fatigue is a reduced ability in work capacity caused by work itself. It is known that altering oxygen is contracting skeletal muscle affects performance. Reduced O2 supply increases the rate of muscle fatigue.

The lactic acid is accumulated as it forms rapidly but the breaking of the lactic acid is slow down, which causes muscle fatigue. Less ATP and glycogen in muscle results in fatigue as the muscle is not able to generate energy to power contractions and therefore contributes to muscle fatigue.

8 0
2 years ago
What is the molarity of 0.540g Mg N,0. in 250 mL of solution?​
Sati [7]

Answer:

2.16x10^-03

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3 0
3 years ago
Name the following compound: <br> C5Si7
skad [1K]

Answer:

Pentacarbon heptasilicide.

Explanation:

In order to name the following compound, we need to identify whether it is molecular or ionic.

Molecular compounds consist of non-metal atoms, while ionic compounds would have metal cations in their composition.

In the given compound, C_5Si_7, we have two non-metals, carbon and silicon, meaning we should follow the molecular compound naming rules. The rules involve using prefixes to state the number of individual atoms.

The two prefixes required here are 'penta' for 'five' to indicate 5 carbon atoms present and 'hepta' for 'seven' to indicate 7 silicon atoms present.

The first part of the name would be pentacarbon (notice that the standard name for the first element is used). The second part would be heptasilicide (notice that the second atom would have an ending of -ide followed by the standard beginning of silicon).

4 0
3 years ago
Which of the following is a vapor? <br>steam<br>hidrógen <br>oxygen <br>helium<br>​
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7 0
3 years ago
When heated, calcium carbonate goes through a chemical reaction, and produces calcium oxide (quick lime) powder and carbon
Contact [7]

Answer:

Carbon dioxide is produced, and as a gas, it was not captured to measure its mass.

Explanation:

4 0
3 years ago
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