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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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kirza4 [7]

Answer:

A) V_rms = 29 V

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Explanation:

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Now, the formula for the root-mean-square potential difference Vrms is given as;

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B) Due to the fact that the voltage is sinusoidal from the given V = V_o cos ωt, we can say that the average potential difference Vav between the two terminals of the power supply would be zero.

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3 years ago
A 1-lb block and a 100-lb block are placed side by side at the top of a frictionless hill. Each is given a very light tap to beg
qwelly [4]

Answer:

(c). The two blocks end in a tie

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3 years ago
You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics
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<h2>Answer:</h2>

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<h2>Explanation:</h2>

In the question,

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Now,

Also,

Finally, the angle made is 2 degrees with the horizontal.

So,

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Final vertical velocity = v.sin20°

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u = v.cos20° (No acceleration in horizontal)

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v=u+at\\vsin20=0+9.8(t)\\t=\frac{v.sin20}{9.8}

So,

We can say that,

\frac{v.sin20}{9.8}=\frac{61}{v.cos20}\\v^{2}.sin20.cos20=597.8\\v^{2}=1860.56\\v=43.13\,m/s

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5 0
3 years ago
A drawback to using nuclear fission is that it...
Westkost [7]

Answer:

D. creates radioactive waste.

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1 year ago
Suppose that two objects attract each other with a gravitational force of 50N. If the mass
vagabundo [1.1K]

Answer:

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