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Marysya12 [62]
3 years ago
14

A physical change can be distinguished from a chemical change because during a physical change- A. the properties of the substan

ce may change, but no new substances are produced B. the properties of the substance change for only a short time but will return to their original state. C. an entirely new substance with new properties forms as a result of the change D. a new substance is produced, but the new substance has properties identical to the original substance.
Physics
1 answer:
joja [24]3 years ago
3 0

Answer:

a

Explanation:

yw

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The mass of one atom would best be measured in this unit:
trapecia [35]

Answer:

mass of one atom is measured in the unit of 1 amu

Explanation:

As we know that the mass of one atom is very small and it is of order of 10^{-27}

here we know that 1 amu is defined as 1/12 part of mass of 1 atom of C-12 isotope

so here we will have

1 amu = 1.66 \times 10^{-27} kg

so here we can say that mass of one atom is measured in the unit of 1 amu

8 0
3 years ago
Please help!
nignag [31]
Since there is no air resistance, gravity is the only force acting on the two objects - the bowling ball and the arrow. Therefore, they will hit the ground at the same time. Thus the answer is D. Both hit the ground at the same time. Hope this helped and have a great day!
5 0
3 years ago
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Explain how heat transfer is occurring through convection, radiation AND conduction in this picture.
frosja888 [35]

A cup of tea/coffee transfers heat via conduction, convection and radiation.

Conduction:

  • Heat transfer from a coffee to the spoon is in direct contact
  • Inner part of the tea cup against hot liquid will transfer heat to the outer part and saucer.

Convection:

Movement of molecules within the coffee. Hot molecules of the tea at the middle of the drink will be eventually make their way to the outer part of the drink near the tea cup, where they will loose their heat.

Radiation:

Thermal radiation is the loss of heat from a solid object in to atmosphere via the release of electromagnetic radiation. So hot outer edge of the teacup loss the energy to its surroundings via thermal radiation.

4 0
3 years ago
Atoms with the same atomic number but different atomic mass are called
Alexxx [7]
<span>Atoms with the same atomic number but different atomic mass are called:

<span>Isotopes</span>
</span>
4 0
3 years ago
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A student takes notes in class.
VARVARA [1.3K]

The wrong statement is that sound waves created vibration Option A.

<h3>What are sound waves?</h3>

Sound is a type of waves that moves in compressions and rare factions. This implies that sound is a mechanical wave. Recall that a mechanical wave is one that requires a material medium for propagation. Now we know that if we set the medium into vibration, that is when the sound waves begins to vibrate. That brings us to the idea that it is the vibration that causes the sound waves and not the sound waves that creates the vibration.

Thus, knowing that sound is a mechanical wave which moves through solids liquids and gas and that the vibration of the source of sound is what causes the air to vibrate, we conclude that the wrong statement is that sound waves created vibration Option A.

Learn more about sound waves:brainly.com/question/11797560

#SPJ1

5 0
2 years ago
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