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3 years ago

8

The transfer mechanism of heat through gases and liquids by circulating currents is called:

1 answer:

Scorpion4ik [409]3 years ago

6 0

The answer is convection

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20 POINTS!! SELECT ALL CORRECT ANSWERS!!

stira [4]

Answer:

xecr tbyununybt y 7nbytvthhbbhd r f

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Based on the Resource Use and Conservation Virtual Lab, Which tactic can do the most to keep the water debt less than the water

Viefleur [7K]

Answer: D. Replacing thermal power plants.

Explanation:

Thermal Power Stations are some of the biggest users of water in the world because water is integral to producing electricity in them. These stations burn fossil fuels like coal which then vaporizes water so that it becomes steam which then drives turbines that produce electricity.

Water is also used for cooling high temperatures produced.

If these thermal stations are replaced with something that uses less water, it will go a long way in keeping the water debt less than the water supply.

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Gold has a specific heat of 0.129 J/(g×°C). How many joules of heat energy are required to raise the temperature of 15 grams of

Elodia [21]

Answer:

$\boxed {\boxed {\sf 121.905 \ J }}$

Explanation:

We are asked to find the energy given mass, specific heat, and change in temperature. Therefore, we must use this formula;

$q= mc \Delta T$

The mass is 15 grams and the specific heat is 0.129 J/(g×°C). Let's calculate the change in temperature.

ΔT= final temperature - initial temperature
ΔT= 85 °C- 22°C = 63°C

Now we know all the values:

$m= 15 \ g \ \\c= 0.129 \ J / (g* \textdegree C) \\\Delta T= 63 \ \textdegree C$

Substitue the values into the formula.

$q= (15 \ g)( 0.129 \ J / (g* \textdegree C)) ( 63 \ \textdegree C)$

Multiply the first numbers together. The grams will cancel.

$q= (1.935 \ J/ \textdegree C) ( 63 \ \textdegree C)$

Multiply again, this time the degrees Celsius cancels.

$q= 121.905 \ J$

<u>121.905 Joules</u> are required.

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3 years ago

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The potential energy stored in the nucleus of an atom is

Verdich [7]

Answer:

Nuclear energy

Explanation:

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3 years ago

In some animals, black fur (B) is dominant over white fur (b). What color fur

Mumz [18]

The animal would have black fur, because the black fur is dominant over the white fur.

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3 years ago