A certain waterfall is 118.7 m high and has water flow rate of 30.2 m3 /s. The acceleration of gravity is 9.8 m/s 2 . Find the maximum electric power that can be generated by these falls assuming 100% conversion of mechanical energy to electric energy. (Take the density of water to be 1.00 × 103 kg/m 3 )

Explanation:

Relation between velocity, mass and acceleration due to gravity is as follows.

               v = mgh

Also, we know that

or,               mass =

                            =

And,    

                       =

                       =

Formula to calculate power is as follows.

       Power = =

                   =                

                   =

Thus, we can conclude that the maximum electric power that can be generated by these falls assuming 100% conversion of mechanical energy to electric energy is .

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

here, a mechanical force turns the rod.   this generates an electric current in the coil, which powers the bulb.