Aresonance structure is one of two or more lewis structures for a single molecule, unable to be represented by a single lewis structure

true or false ?

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

What are several ways to reduce the effect of friction