3 years ago

Which sentence best explains the law of conservation of mass as applied to

Physics

1 answer:

drek231 [11]3 years ago

3 0

Answer:

A. The amount of mass changes only slightly during a chemical

reaction.

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Which of the following concepts best explains why a mass of low-density material in the mantle rises?Multiple Choice Strain Buoy

SOVA2 [1]

Answer:

Bouyancy

Explanation:

Bouyancy occurs when the upthrust exerted on an object is equal to the weight of object displaced. It is mostly applicable to low density objects for example balloon. When balloon is displaced in water, it floats. This is due to the effect of the upthrust acting on the balloon which allows the balloon to float and which is opposite the weight.

Note that the weight acts downwards the object while the upthrust always acts opposite (upward)

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~686newtons on earth and
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3 years ago

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jolli1 [7]

She misses. She should have accelerated faster in order to get to her target.

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3 years ago

By looking at the relative positions of the elements calcium, Ca, fluorine, F, sulfur, S, and oxygen, O, in the Periodic Table,

SVEN [57.7K]

Answer:

id say the first option.

Explanation:

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3 years ago

A 250 kg car has 6875 kg•m/s of momentum. What is it’s velocity?

liraira [26]

Answer:

v = 27.5 m/s

Explanation:

p = m × v

6,875 = 250 × v

250v = 6,875

v = 6,875/250

v = 27.5 m/s

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3 years ago