the constant difference of length between a rod of aluminium ( coeficient of linear expansion is 24×10^_6) and a rod of brass (coeficient of linear expansion is 19×10^_6) is 8cm all temperatures equal. calculate the length of each rod

What is the mass of the same rock on the earth

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom