Whos faster :

usain bolt
cheetah

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a