Hi, this sounds like a chemistry question:
If you wanted to separate sand from iron fillings for example, using tweezers would be a great tool to do this, depending on the size of the iron fillings.

5 0

3 years ago

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What resistance will the ohmmeter measure in the circuit shown below?

statuscvo [17]

I think the answer for this question is c

6 0

4 years ago

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Two point charges attract each other with an electric force of magnitude F. If one charge is reduced to one-third its original v

Pavel [41]

Answer:

New force, $F'=\dfrac{F}{12}$

Explanation:

Given that, two point charges attract each other with an electric force of magnitude F. It is given by :

$F=k\dfrac{q_1q_2}{r^2}$

If one charge is reduced to one-third its original value and the distance between the charges is doubled such that,

$q_1'=\dfrac{q_1}{3}$ , $r'=2r$

$F'=k\dfrac{q_1'q_2'}{r'^2}$

$F'=k\dfrac{(q_1/3)q_2}{(2r)^2}$

$F'=\dfrac{F}{12}$

So, the electric force between them is reduced to (1/12). Hence, the correct option is (d).

3 0

3 years ago

What is projectile motion?

ololo11 [35]

Answer:

Explanation:

5 0

3 years ago