Answer:
F₁ = 10.64 N
Explanation:
The pressure is transmitted equally from the first piston to the second piston:
where,
F₁ = Force applied by compressed air on first piston = ?
F₂ = Weight lifted by second piston = 66.5 N
r₁ = radius of first piston = 10 cm
r₂ = radius of second piston = 25 cm
Therefore,
<u>F₁ = 10.64 N</u>
Simple cells have liquid chemicals, making it harder for it to carry. While as dry cells have no liquid chemicals, making it easier to carry.
Answer:
An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case, a negative acceleration).
Explanation:
The correct answer is B. Water vapor condensing as it rises into cooler air
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Answer:
Fatal voltage will be 1000 volt
Explanation:
We have given that current is very small as
Resistance is given as R = 20000 ohm
We have to find the fatal velotage
According to ohm's law
We know that voltage is given by
So fatal voltage will be
So fatal voltage will be 1000 volt