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Bogdan [553]
3 years ago
12

We use electrical devices that produce motion, light, and sound. Which aspect of energy explains why these devices are possible?

Physics
2 answers:
matrenka [14]3 years ago
7 0

Answer:B

Explanation: If energy could be changed from one form to another we wouldn’t need different devices.

Lesechka [4]3 years ago
6 0

Answer:

B. Energy can change from one form to another.

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tatuchka [14]

Answer:

D is the answer  I think (0 w 0 )

Explanation:

7 0
3 years ago
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A person walks 4.0 kilometers north, then 4.0 kilometers west. His displacement is closest to
larisa86 [58]
Use the Pythagoras for the magnitude and the tan^-1 x = -1 for the angle

displacement = 4^2 + 4^2 = 32 = 4 sqrt(2) =  5.65 km

angle is 135 degrees.

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3 years ago
Convert 14 mg to kg ....<br>​
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<h2>♨ANSWER♥</h2>

14mg = 14 × 10^-3 g

= 14 × 10^-3 / 10^3 kg

= 14 × 10^-6 kg

= 0.014 kg

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7 0
2 years ago
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Think Critically Suppose your teacher gave you a slide of an unknown cell. How would you tell whether the cell was from an anima
topjm [15]

Answer:

You will be able to tell whether the unknown cell is from an animal or from a plant through the knowledge of difference between plants and animal cells.

Explanation:

A cell can be defined as the simplest bit of living matter which exhibits a variety of shapes and sizes and that can exist independently.

When a slide of an unknown cell is studied under a microscope, different cell structures would be observed which would be used to conclude if the cell on the slide is a plant or animal cell.

The following features are observed in a plant cell:

--> cellulose cell wall is present

--> Chloroplast is present

--> A large central vacuole is present

--> Centriole is absent

The following features are observed in animal cell:

--> Cellulose cell wall is absent

--> Chloroplast is absent

--> Small vacuoles is present

--> Centriole is present

The difference between a plant and an animal cell can be seen from the features above and a clear knowledge of this will help the student tell whether the unknown cell is from an animal or from a plant.

4 0
3 years ago
How does the toaster serve as an example of Convection energy transfer?
blsea [12.9K]
Check bing for the answer
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3 years ago
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