A proton is moved 5 cm closer to the negative plate in an oppositely charged parallel plate arrangement. Ignoring any changes in gravitational energy and if the strength of the field inside the plates is 600 N/C. Find: a. the work done in moving the proton.
b. the sign of the work done in moving the proton.
c. the PE gained/lost by the proton
d. Was it gained or lost?

Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25˚ e? this would have obliterated the city.

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

Multiply or divide to make this english distance conversion. 174 inches = feet (14.5, 58, 2,088, 23)