In the drawing above, the distance from the ground to the floor of the trailer is 20 inches. The length of the ramp is 40 inches. What is the mechanical advantage of this simple machine? A.
2
B.
1/2
C.
1/3
D.
20

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

Ain is , is 's of ? 0.62 0.79 1.27 1.50

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the