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Daniel [21]
2 years ago
10

b) With the aid of diagrams, briefly describe an experiment to determine the density of an irregular shaped object (eg. stone).​

Physics
1 answer:
Ludmilka [50]2 years ago
4 0

Answer:

check the explanation

Explanation:

To find density you need mass and volume

to find mass use a digital balance and record it. Ex - 50g
to find the volume of the object
use a measuring cylinder and lets say you fill it up to 50cm³
then add the irregular object to the cylinder and record the new volume Ex - 54cm³
to find the volume of the object subract the final volume from the intial volume

54cm³-50cm³=4cm³

now that you have mass and volume use the equation D=M/V

Density =   <u>  Mass </u>   =   <u>50g  </u>  = 12.5g/cm³<u>
</u>                  Volume       4cm³

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Someone drops a brick on a 2.6 kg cart moving at 28.2 cm/s. After the collision, the dropped brick and cart are moving together
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Answer:

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Explanation:

From the law of conservation of momentum,

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Note: The initial velocity of the brick is zero Thus mu = 0

making m the subject of the equation,

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Substituting into equation 2,

m = (2.6×0.283/0.157)-2.6

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Thus the mass of the brick = 2.087 kg

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