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3 years ago

5

Libby is doing experiments with two different magnets. Magnet A can only attract thumbtacks that are up to 1 inch away from it.

Magnet B can attract thumbtacks that are up to 3 inches away from it. What is likely true of the magnets?

1 answer:

castortr0y [4]3 years ago

6 0

magnet B has a greater magnetic pull than magnet A

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11Alexandr11 [23.1K]

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Lithium

Explanation:

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3 years ago

A 5.5 gg sample of a substance contains only carbon and oxygen. Carbon makes up 35%% of the mass of the substance. The rest is m

Elan Coil [88]

Answer:

a. ((100 - 35)/100) times 5.5 grams = 3.575 g

Explanation:

Given that:

The sample of carbon and oxygen = 5.5g

where carbon makes 35% of the mass of the substances.

It implies that oxygen will make: (100 - 35)% = 65%

Suppose y be the mass of the oxygen;

Then:

$y = \dfrac{(100-35)}{100} \times 5.5 \ g$

$y = \dfrac{(65)} {100} \times 5.5 \ g$

$y = 3.575 \ g$

The mass of carbon $= \dfrac{35}{100} \times 5.5 \ g$

= 1.925 g

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3 years ago