Which choice describes a concern with wind energy? O may harm bird and bat populations
o negative impact on river ecosystems
O turbines are cheaply made
O could interfere with pollen distribution

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.

Which of the following types of electromagnetic radiation has the longest wavelength? a. infrared light b. visible light c. ultraviolet light d. microwaves