1 1. Hydrogen's one electron is found in the energy level. ок O L OM
1 answer:
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First we can say that since there is no external force on this system so momentum is always conserved.
now by the condition of elastic collision
also from above equation we have
So ball of mass 0.6 kg will rebound back with speed 0.267 m/s and ball of mass 1.2 kg will go forwards with speed 0.533 m/s.
Explanation:
Power is defined as the rate at which work is done in per unit time.
Mathematically,
It is given that work done by engine is 4,560,000 J and time is 20 minutes.
There is 60 seconds in 1 minute. So, convert minutes into seconds as follows.
= 1200 seconds
Calculate power output of the engine as follows.
=
= 3800 J/s
or, = 3800 Watt
Therefore, the power output of the engine is 3800 Watt.