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LekaFEV [45]
3 years ago
9

Which of the following systems reflects a decrease in entropy? A. burning match B. freezing water C. evaporating alcohol D. brea

king glass **Thank you!!
Physics
2 answers:
Bad White [126]3 years ago
7 0
It would be B)  freezing water because this change gets less chaotic
torisob [31]3 years ago
4 0
The answer is B. because introducing heat to something (A and C) increases entropy, and so does breaking something (D)
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A water wheel is a example of
Kisachek [45]
 a machine for converting the energy of falling water into useful forms of power and it is also known as a watermill      
8 0
3 years ago
2. A can filled with sand has a mass of 0.65kg is swung overhead in a horizontal circle of radius 0.70m at a constant rate of 2.
Aliun [14]
<h3><u>Answer</u>;</h3>

≈ 5 Kgm²/sec

<h3><u>Explanation</u>;</h3>

Angular momentum is given by the formula

L = Iω, where I is the moment of inertia and ω is the angular speed.

I = mr², where m is the mass and r is the radius

 = 0.65 × 0.7²

 = 0.3185

Angular speed, ω = v/r

                              = (2 × 3.142 × r × 2.5) r

                              =  15.71

Therefore;

Angular momentum =  Iω

                                 = 0.3185 × 15.71

                                 = 5.003635

                                 <u>≈ 5 Kgm²/sec</u>

6 0
3 years ago
If a magnet repels a metal object what can you say about the pole of the magnet and the pole of the object?
sleet_krkn [62]
Poles are the same D is the right answer
7 0
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Read 2 more answers
Frying an egg conduction convention radiation
Allushta [10]

Answer:

frying an egg is conduction because the pan is touching the stove and the pan is touching the eggs

Explanation:

4 0
3 years ago
Please help: I don't know how to do these problems
antiseptic1488 [7]
d =2.55.68m and t = 11.36s
In my opinion
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