D.N(Newton) this is the S.I unit for force
To measure the fluids that you will be using such as water or other chemicals if your mixing them and they have to be precise measurements
Answer:

Explanation:
Distance travelled = 200 metre
Time taken = 24 second
Velocity = ?
<u>Finding </u><u>the</u><u> </u><u>velocity</u><u> </u>



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The wires that will have the least resistance is :
C. A short thick wire
in order to get the least resistence, you need the wire to be the lowest in length and the highest in Area
hope this helps