Next, based on the correct answer from part a, which of the following is the correct symbolic expression for a?
(a) m(a1 + f)/(2m)
(b) (a1 + f)/m
(c) (ma1 + f)/m
(d) (ma1 + f)/(2m)

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

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

The force it would take to accelerate an 900-kg car at the rate of 6m/s2