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lana [24]
3 years ago
9

Which of the following statements best describes earths mineral resources

Physics
2 answers:
bulgar [2K]3 years ago
8 0
It is D, you can not replace minerals. This makes them valuable.
prohojiy [21]3 years ago
3 0
It's B. Valuable and non-renewable. Their valuable because they can't be renewed.
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To calibrate your calorimeter cup, you first put 45 mL of cold water in the cup, and measure its temperature to be 24.7 °C. You
drek231 [11]

Answer : The heat change of the cold water in Joules is, 1.6\times 10^3J

Explanation :

First we have to calculate the mass of cold water.

As we know that the density of water is 1 g/mL. The volume of cold water is 45 mL.

Density=\frac{Mass}{Volume}

Mass=Density\times Volume=1g/mL\times 45mL=45g

Now we have to calculate the heat change of cold water.

Formula used :

Q=m\times c\times (T_2-T_1)

where,

Q = heat change of cold water = ?

m = mass of cold water = 45 g

c = specific heat of water = 4.184J/g^oC

T_1 = initial temperature of cold water = 24.7^oC

T_2 = final temperature  = 33.4^oC

Now put all the given value in the above formula, we get:

Q=45g\times 4.184J/g^oC\times (33.4-24.7)^oC

Q=1638.036J=1.6\times 10^3J

Therefore, the heat change of cold water is 1.6\times 10^3J

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3 years ago
Que cuerpos celestes observó laika durante su viaje
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The standard metric unit of density for a solid is
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There is no SI "base unit" of density.
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