Physics
If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is ________

360C
60 C
216 C
36 C

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Physics
It is easier to roll a barrel full of coal tar than to pull it because

more surface area of the barrel is in contact with the road when it is pulled
the rolling friction is much less than the sliding friction
coal tar is a liquid and it flows in the barrel when it is rolled
the full weight of the barrel comes into play when it is pulled

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