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Sladkaya [172]
3 years ago
10

Why does a piece of cork float in water?

Chemistry
2 answers:
bazaltina [42]3 years ago
8 0
It has a density lower than 1
Sunny_sXe [5.5K]3 years ago
3 0
Cork floats in water because the cork weighs less than the amount of water that it would have to push up to sink. This basically says that since cork is less dense than water, it floats.
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If Bert the Bat travels eastward at 540 mph with a tail wind of 6 mph. What is his actual speed?
miskamm [114]

Answer:

12 mph

Explanation:

6 0
3 years ago
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3.
Vsevolod [243]

Answer:

2 half-lives=0.8

6 half-lives= 0.05

Explanation

Half-lives are constant and always decrease by half, implying that the concentration decreases by half at a consistent rate.

3.2/2= 1.6/2= 0.8 is two half-lives

3.2/2= 1.6/2= 0.8/2= 0.4/2= 0.2/2= 0.1/2=0.05 is six half-lives

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3 years ago
Identify objects that are good conductors of heat. (Choose all that apply.)
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8 0
3 years ago
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a metal object has a mass of 9.0g and a volume of 1.5ml. what is the density of the object? density= mass/volume​
weeeeeb [17]

The density of the metal object=6.0\frac{g}{m l}

Given:

Volume of the metal object=1.5ml

Mass of the metal object=9.0g

To find:

Density of the metal object

<u>Step by Step Explanation: </u>

Solution:

According to the formula, Density of the metal object can be calculated as

\rho=\frac{m}{v}

Where, m=mass of the metal object

\rho =density of the metal object

v=volume of the metal object

We know the values of v=1.5ml and m=9.0g

Substitute these values in the above equation we get

\rho=\frac{m}{v}

\rho=9.0/1.5

=6.0\frac{g}{m l}

Result:

Thus the density of the metal object is 6.0\frac{g}{m l}

4 0
3 years ago
If a rock has a volume of 2cm3 and a mass of 12g. What is its density?
Dimas [21]
It should be 6 g/cm^3
8 0
3 years ago
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