Convert 500 inches to m.
1000mm =1m
1inch = 2.54 cm
10mm=1cm

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

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?

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5