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Ad libitum [116K]
3 years ago
10

A toaster changes electrical energy to thermal energy. This is a/an

Physics
1 answer:
erastova [34]3 years ago
7 0

A because the toaster converts electrical energy into heat energy and, after the bread has been heated for sufficient time, toasts pop out, ready to be buttered. And converting means transforming.

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Which is an example of a chemical change?
Monica [59]

Answer:

Frying an Egg

Explanation:

When chemical bonds are broken or formed, new particles are created. Therefore, frying an egg is a chemical change because it results in the formation of new particles.

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3 years ago
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A. Protons and neutrons make up the nucleus of an atom. Write 3 - 4 sentences describing the electrostatic force between each pa
Vladimir [108]

a) Proton-proton: high repulsive electrostatic, very high attractive nuclear force. Proton-neutron: no electrostatic forces since neutrons are not charge carriers, high attractive nuclear force. Neutron-neutron: no electrostatic force for the same reason and huge attractive nuclear force.

b) There are two types of forces in the nuclei: repulsive electrostatic and attractive nuclear. Nuclear act between all nucleons, electrostatic only between protons. To make a nucleus stronger, increase number of attractive forces by increasing amount of neutrons.

c) Cause due to equivalence between mass and energy E=mc^2 change in energy (which happens in nuclear reaction) causes on change in mass. Starting mass just converts to energy, that's why it's greater than the ending mass.

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4 years ago
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The two properties that are<br> parts of refraction are ...
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Answer:

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-Absolute refractive index– It is the ratio of light in vacuum to the speed of light in another medium.

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3 years ago
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A scientist designs an experiment in which a light source is pointed at a substance and a light detector is placed on the opposi
Lostsunrise [7]
The answer is D. Either absorbed or reflected. The reason is because if no light is being shown on the other side, the substance is not letting any light pass through. Since we do not know anything else about the substance, we do not know which one of the two it is doing. The scientist would not see any light on the detector if 100% of the light is reflected and the same thing would happen if 100% of the light was absorbed.
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