Energy makes mass move. when mass is moved by force, is done.

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

True or false graphs must include scales that increase by the same amount

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2