What is a stationary front? A. When a cold air mass and a warm air mass meet and don't move
B. When a cold air mass remains in place
C. When two cold air masses meet and don't move
D. When a warm air mass doesn't move

Which branches of natural science include the study of an organism that lived 10 million years ago

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

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules