Is xenon a pure substance

Yes, Xenon is an element that belongs to 18th group of periodic table " Noble gases " . All the elements are composed of a particular type of atom, therefore Xenon is a pure substance

true tan speed = ang vel x radius

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.