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Mariana [72]
3 years ago
11

In a ceiling fan, N, electrical energy is converted to M, Kinetic energy. Some of the energy is "wasted" as heat. What is someth

ing you can do to minimize the energy dissipated as heat? A) turn off the light B) run the fan less than 4 hours/day C) only run the fan on low power setting D) make sure the motor and moving parts are lubricated to decrease friction
Chemistry
2 answers:
salantis [7]3 years ago
7 0

Answer:

It d

Explanation:

Kruka [31]3 years ago
6 0

Answer: It's D

Explanation:

I just did this question and i picked C but it's actually D

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Answer:

Sorry I don't know.

Explanation:

I'm only in middle school.

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2 years ago
Explain how the solubility of water is useful in maintaining various life processes.
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Water's extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water's role as a solvent helps cells transport and use substances like oxygen or nutrients.
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Does hydrogen builds all the acids??​
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6 0
3 years ago
The analysis of a compound gives the following percent composition by mass: C: 52.14 percent; H: 9.946 percent; S: 12.66 percent
wariber [46]

Answer:

C11H25SO4

Explanation:

The total mass of the compound is 253.4 g, so, the mass of each element will be:

C: 52.14% of 253.4 = 0.5214x253.4 = 132.12 g

H: 9.946% of 253.4 = 0.09946x253.4 = 25.20 g

S: 12.66% of 253.4 = 0.1266x253.4 = 32.08 g

O: 25.26% of 253.4 = 0.2526x253.4 = 64.00 g

The molar mass are: C = 12 g/mol, H 1 g/mol, S = 32 g/mol, and O = 16 g/mol

So, to know how much moles will be, just divide the mass calculated above for the molar mass:

C: 132.12/12 = 11 moles

H: 25.20/ 1 = 25 moles

S: 32.08/32 = 1 mol

O: 64.00/16 = 4 moles

So the molecular formula is C11H25SO4

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2 years ago
How can people conserve water at home? rinsing dishes with cool water instead of warm water
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