If the paint ball takes 555 milliseconds (0.555 seconds) to hit the ground, how high is the table?

The electric field direction is defined by the direction of the force felt by (select one of the following answers): 1. a negative charge. 2. a positive charge. 3. both positive and negative charges.

Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element

Which is the most accurate name for the covalent compound p2o3?