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Artemon [7]
2 years ago
9

Which of the following statements about recycling electronic waste is true?

Chemistry
1 answer:
otez555 [7]2 years ago
5 0

Answer:

Explanation:

the correct one is D

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A sheet of gold weighing 8.8 g and at a temperature of 10.5°C is placed flat on a sheet of iron weighing 19.5 g and at a tempera
timofeeve [1]

Answer:

T = 36.393\,^{\textdegree}C

Explanation:

The contact between the sheet of gold and the sheet of iron allows a heat transfer until thermal equilibrium is done, which means that both sheets have the same temperature:

-Q_{iron} = Q_{gold}

-(0.008\,kg)\cdot (452\,\frac{J}{kg\cdot ^{\textdegree}C} )\cdot (T-54.4\,^{\textdegree}C) = (0.0195\,kg)\cdot (129\,\frac{J}{kg\cdot ^{\textdegree}C} )\cdot (T-10.5\,^{\textdegree}C)

-(3.616\,\frac{J}{^{\textdegree}C})\cdot (T-54.4\,^{\textdegree}C) = (2.515\,\frac{J}{^{\textdegree}C})\cdot (T-10.5^{\textdegree}C)

-1.438\cdot (T - 54.4^{\textdegree}C) = T-10.5^{\textdegree}C

-1.438\cdot T +78.227^{\textdegree}C = T - 10.5^{\textdegree}C

2.438\cdot T = 88.727\,^{\textdegree}C

The final temperature is:

T = 36.393\,^{\textdegree}C

8 0
3 years ago
Read 2 more answers
What moves the pieces of salt on top of the speaker when the music is playing
Ksivusya [100]

Answer:

the friction?? or the movement

Explanation:

sense the salt is so light its easy to move

5 0
3 years ago
Which of the following is an incorrect way of rearranging the density formula:
goldenfox [79]
We know that density = mass /volume
so
mass=volume*density
volume=mass/density
so c is wrong
5 0
3 years ago
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Two masses exerting a force on each other is an example of What????
trasher [3.6K]

Newtons universal law of gravitation

hope this helps

8 0
3 years ago
What happens to<br> carbon dioxide?
Molodets [167]
Moves from the atmosphere to the oceans
3 0
2 years ago
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