Recent content by killa0587

1. George is going to bungee jump from a bridge that is 40.5 m over the river below. The bungee cord has an unstretched length of 27.5 m. To be safe, the bungee cord should stop George's fall when he is at least 2.00 m above the river. Ignoring air resistance, if George has a mass of 75.0 kg...

Thanks So much I got all 3 of them correct.

And on the last part I would take the 2.7GW and convert to kW then multiply by .27

Sweet! So I got 2.7 GW

power = work / time or p= mgd / t

1.8 x 9.8=17.64whats GW though? gigga watts

so the displacement would be the length of the fall

well work is force x displacement correct

and that was it...Thanks! any insight on the others maybe just to get me started?

the -882J

yeah it is. I thought about the negative but only have one attempt left and want to be really sure about it

1. (a) Calculate the change in potential energy of 1.8 kg of water as it passes over Niagara Falls (a vertical descent of 50 m). ______ J (b) At what rate is gravitational potential energy lost by the water of the Niagara River? The rate of flow is 5.5 106 kg/s. ______GW (c) If 27% of...