Two boxes are balanced on a uniform plank, as shown on the diagram. The box on the right weighs 3.0 kg and its center of mass is located 6.0 m from the pivot point. The box on the left has an unknown mass and its center of mass is 2.0 m from the pivot point. Which of the following quantities are needed to determine the mass of the box on the left? Select two answers.

There are weak or strong attractive forces between atoms of liquids with a high viscosity

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

The energy produced as a result of this flow of electrons from atom to atom is called