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2 years ago

In what ways can the motion of an object change?

Chemistry

1 answer:

lozanna [386]2 years ago

8 0

Answer:

A force can speed up or slow down an object. A force can change the direction in which an object is moving. A bigger force on an object will produce a bigger change in the motion. A heavier object requires a larger force than a lighter object in order to undergo the same change in motion.

Explanation:

Mark me brainlist, Please.

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mars1129 [50]

Answer:

Explanation:

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2 years ago

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When a physical change in a sample occurs, which of the following does NOT change?

Vanyuwa [196]

I think thee correct answer from the choices listed above is option D. <span>When a physical change in a sample occurs, composition of the sample does not change. It stays the same. Also, the properties of the sample will still be the same. Hope this answers the question.</span>

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3 years ago

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julsineya [31]

Answer:

disagree

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Explanation:

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3 years ago

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the temperature of a sample of water increases from 20celsius to 46.6celsius as it absorbs 5650 J of heat. what is the mass of t

Levart [38]

Answer:

m = 50.74 kg

Explanation:

We have,

Initial temperature of water is 20 degrees Celsius

Final temperature of water is 46.6 degrees Celsius

Heat absorbed is 5650 J

It is required to find the mass of the sample. The heat absorbed is given by the formula ad follows :

$Q=mc\Delta T$

c is specific heat of water, c = 4.186 J/g°C

So,

$m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{5650}{4.186\times (46.6-20)}\\\\m=50.74\ kg$

So, the mass of the sample is 50.74 kg.

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3 years ago

Which best describes the transfer of heat energy through conduction? A. Heat energy is transferred from molecule to molecule by

TiliK225 [7]

It should be option (A) because conduction is the transfer of heat energy from one place to another by vibrations/motion of the molecules. I hoped I helped.

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3 years ago