The series limit for balmer series of hydrogen spectrum occurs at 3664 a. calculate ionization energy of hydrogen atom?

There are main groups in the modern periodic table of elements

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?

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring