When a ball is at a particular height it possess potential energy which is given as,
The potential energy is converted into kinetic energy of the ball. According to conservation of energy,
which can be further given as,
Substitute the known values,
Thus, the kinetic energy of the ball is 0.140 J.
Answer:
Explanation:
Given
Resistor A has length
and Resistor B has Length
and Resistance is given by
Considering and A to be constant thus
because
(a)When they are connected in series
As the current in series is same and power is
therefore as R is greater for second resistor
(b)if they are connected in Parallel
In Parallel connection Voltage is same
resistance of 2 is greater than 1 thus Power delivered by 1 is greater than 2