A horizontal turntable rotates at a constant rate. When viewed from above, a coin on this turntable moves clockwise. Friction keeps the coin on the turntable. Which of the following best represents the directions of
acceleration a and velocity v of the coin when it is at the position shown (the bottom of the circle)?

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