What is the ostrich's average acceleration from 9.0 to 18 seconds?

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

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

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?