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n200080 [17]
3 years ago
9

The efficiency of a machine can be increased by decreasing distance. decreasing force. reducing friction. reducing work.

Chemistry
2 answers:
crimeas [40]3 years ago
5 0

Answer:

Reducing friction

Explanation:

The efficiency of a machine is a how the input energy is converted in output work

Then in the middle you have things consuming the input energy and not going to the output work, the best you can do is reducre those things consuming, for a machine it can be friction, heat, vibration or loose parts.

For that reason Reducing friction is the answer

xeze [42]3 years ago
5 0

Answer: Reducing friction

Explanation:

Friction refers to the resistance that a surface encounters while moving on the surface of another. Machines often posses moving parts such as rollers. Those parts move on other surfaces generating friction. Friction in machine parts leads to useless work and reduces the amount of input work used by the machine to do useful work. The efficiency of a machine has to do with its ability to convert input work into output work. This efficiency is greatly reduced by friction in the moving parts of the machine. Hence friction decreases the efficiency (work done by a machine)

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butalik [34]

Answer:

C. 3CO(g) + Fe2O3(s)

Explanation:

The substance(s) to the hath left of the arrow in a chemical equation art hath called reactants.  A reactant is a substance yond is presenteth at the starteth of a chemical reaction.  The substance(s) to the right of the arrow art hath called products.  A product is a substance yond is presenteth at the endeth of a chemical reaction

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2 years ago
How do particles in a solid move?
satela [25.4K]

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The particles in a solid vibrate in place.

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Hope this helps!

8 0
3 years ago
Which of the following numbers count as exact numbers and do not count when determining significant figures in a calculation? 1.
rewona [7]

Answer :

(1) Density do not count as exact number.

(2) Volume count as exact number.

(3) Length count as exact number.

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(6) Mass do not count as exact number.

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Exact numbers : It is a defined or integer value which comes from counting numbers of objects.

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(6) Mass : 38.741 g

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4 0
3 years ago
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