C. motion can be defined as change in position.
Explanation:
Yes, it is possible to have zero speed while accelerating, but only for a moment. ... acceleration is the rate at which the speed and direction of an object changes over time, so whenever an object goes through zero speed while reversing directions, it has non-acceleration. zero but a speed of zero.
HeatEngines!Agasolineengineisaformofaheatengine."Gasoline is mixed with air."A spark ignites the mixture, whichburns rapidly."Heat is released from the
Answer:

Explanation:
As it is given that flow rate in the pipe is 20 cm^3/s
so we have

at the upper end the area is given as


Also at the other end


now the speed at two ends is given as




now by Bernoulli's theorem we have

now we have

Now we have

about 5 watts (5W) of power