Wind farms are a source of renewable energy found around the world. the power p (in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v (in meters per second). if a turbine generates 500kw in a 10m/s wind, how much power does it generate in a 12m/s wind? .

864,000 kW

Explanation:

P = bS^3 is the equation we can get from the problem.

The b is the blowing wind's constant of variation. S is the speed of the wind.

Plug in 12 for the speed and 500 for the constant of verition.

P=500(12)^3

P = 864,000

The power generated will be a lot higher with just a little bit more windspeed!

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.