a scientist designs an experiment to see which brand of cell phone battery will last the longest. what is the independent variable?

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

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