Max, who has a mass of 80 kg and his girlfriend, Allison, who has a mass of 50 kg are wearing skates and are standing together on a frozen lake. If
they push apart and Max has a velocity of 0.72 m/s in the south direction,
then what is the velocity of Allison? (Neglect friction)

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

If a simple machine reduces the strength of a force, what must be increased?

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