If dirt and grease were good conductors of electrical current, then we could make wire
out of dirt and grease instead of expensive copper. Sadly, they're not. So a coating of
dirt and grease on the wire can have a substantial impact on the connection, and can
even block the flow of current across the connection completely. Moreover, in the case
where the ends of the wires are to be soldered, solder does not adhere to dirty wire.
Answer:
The value is
Explanation:
From the question we are told that
The weight of the person is
The dosage of the drug is
Given that
=>
=>
This question is probably referring to heat energy transferring from the car to its surroundings.
The net force on the object is zero, so it has no acceleration. It moves in a straight line and at a constant speed (which may be zero).
In order to keep the object moving in the same direction and with same speed, its initial and final momentum should be zero.
∴ Net force on the object should be zero.