A string with a linear density of 6 kg/m is stretched to a length of 0.9 meters and fastened at both end so that it can freely vibrate. The tension on the string is 1100 Newtons. At what speed would a wave propagate on this string

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?

How does the motion of an airplane compare to the motion of a rocket ?