Which is the best example of forces acting in the same direction?
a boy lifting his chest off the ground during a pushup
two football players pushing a tackling sled
a person pulling out a garden hose from its reel
two dogs playing tug-of-war with a rope

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Energy can be transformed from one form to another. the diagram shows one such process. which energy transformation is represented in the diagram? nuclear to thermal and radiant nuclear to electrical and chemical chemical to nuclear and radiant chemical to electrical and nuclear