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g100num [7]
3 years ago
12

Describe the energy conversions that occur as a microwave oven heats a cup of water

SAT
1 answer:
topjm [15]3 years ago
5 0

The conversions are:

Electrical to electromagnetic and mechanical (when we turn on the microwave).

Electromagnetic to thermal (as the microwave heats up the cup of water).

<h3>What energy conversions occur?</h3>

We will describe the process in which you already have a cup of water inside the microwave.

First, you turn on the microwave. Here you are giving the microwave electrical energy so it can work.

The microwave rotates the cup of water, so there is a transformation of electric energy into mechanical energy.

The microwave also creates electromagnetic radiation which affects the cup, so there is a change from electric energy to electromagnetic energy.

This electromagnetic energy interacts with the water by increasing the temperature, so finally we have a change from electromagnetic energy to thermal energy.

If you want to learn more about energy, you can read:

brainly.com/question/8101588

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mrs_skeptik [129]
81 because each person has 9 people to greet and there’s 9 people so 9x9=81
4 0
3 years ago
Researchers are studying two different designs of computer keyboards
olga_2 [115]

There are several types of keboard designs and research is ongoing to improve their efficiency e,g  QWERTY, QWERTZ and AZERTY keyboards

<h3>Types of Keyboards</h3>

Bellow is an extended list of the various types of keyboards

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8 0
2 years ago
U just died.... Ur soul is rising to heaven. In between ur journey, you come across an intersection. At the middle of the inters
creativ13 [48]

Answer:

who do you work for... lma sorry

Explanation:

5 0
3 years ago
Read 2 more answers
If f(x)=(x+3)³+4<br> let g(x)=f(x+1)-2<br> find when g(x)=12
Alla [95]

Answer:

Explanation:

g(x) = f(x + 1) - 2

g(x) = (x + 1 + 3)^3 -2

g(x) = (x + 4)^3 - 2

Now what are we supposed to do with this? I'm guessing we are to find what value of x will make g(x) = 12. If I'm wrong, leave a note in the form of a comment.

g(x) = 12

(x + 4)^3 - 2 = 12                 Add 2 to both sides.

(x + 4)^3 = 14                      Take the cube root of both sides.

x + 4 = cubrt(14)

x + 4 = 2.4101                      Subtract 4

x = 2.4101 - 4

x = -1.5899

8 0
3 years ago
So what score do I need to go to Duke University
Alex73 [517]
The 25th percentile New SAT score is 1450, and the 75th percentile SAT score is 1570. In other words, a 1450 places you below average, while a 1570 will move you up to above average. There's no absolute SAT requirement at Duke, but they really want to see at least a 1450 to have a chance at being considered.
7 0
3 years ago
Read 2 more answers
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