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nataly862011 [7]

3 years ago

11

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alexira [117]3 years ago

4 0

Answer:

huh is this a Morse code or smth

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What energy sources boil the water in geothermal energy

GREYUIT [131]

The steam rotates a turbine that activates a generator, which produces electricity. Many power plants still use fossil fuels to boil water for steam. Geothermal power plants, however, use steam produced from reservoirs of hot water found a couple of miles or more below the Earth's surface.

5 0

3 years ago

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Gold has a density of 1,200 lb./ft. What is the density of gold in g/em? For conversion factors use I lb. 453.6 g, and l inch-2.

Jlenok [28]

<u>Answer:</u> The density of gold in $g/cm^3$ is $19.22g/cm^3$

<u>Explanation:</u>

Density is defined as the ratio of mass of the object and volume of the object. Mathematically,

$\text{Density}=\frac{\text{Mass of the object}}{\text{Volume of the object}}$

We are given:

Density of gold = $1200lb/ft^3$

Using conversion factors:

1 lb = 453.6 g

1 feet = 12 inches

1 inch = 2.54 cm

Converting given quantity into $g/cm^3$ , we get:

$\Rightarrow (\frac{1200lb}{ft^3})\times (\frac{453.6g}{1lb})\times (\frac{1ft}{12inch})^3\times (\frac{1inch}{2.54cm})^3\\\\\Rightarrow 19.22g/cm^3$

Hence, the density of gold in $g/cm^3$ is $19.22g/cm^3$

6 0

4 years ago

Sound travels most quickly through? a gas, liquid. Solid

aleksley [76]

Answer:

solids

Explanation:

through solids because the molecules are closer together

4 0

3 years ago

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Which lists the substances from least to most acidic?

Rus_ich [418]

Answer:

A. Have an amazing day!!

Explanation:

7 0

3 years ago

When the metal was placed in the calorimeter, its temperature dropped to the equilibrium temperature. Calculate the change in te

MAVERICK [17]

Answer:

1st one= -79.6

2nd one= -80

3rd one= -81.2

Explanation:

Good luck!

5 0

3 years ago

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