Agem has a mass of 4.50 g. when the gem is placed in a graduated cylinder 12.00 ml of water, the water level rises to 13.45 ml.

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg

What are several ways to reduce the effect of friction