Which statement best explains why there could be a force of attraction between two electrically charged objects?'
because they have like charges
because they have unlike charges
because they have the same number of protons
because they have the same number of electrons

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.