You're bragging to your friend from canada that your new hybrid car gets great gas mileage. you tell him you get 50 miles per gallon, and he says that's nothing: "i get 23 kilometers per liter in my new car". does he actually get better gas mileage than you

Which of these is the best way to manage a natural resource

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.

What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%