In physics lab, you measure three quantities: , , and . suppose that =1.5 kg , =0.4 m , and =3.9 kg/m . which of the mathematical combinations might be meaningful?

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Energy flows from the producer level to the level. is called

Water flows through a garden hose which is attached to a nozzle. the water flows through hose with a speed of 2.19 m/s and through the nozzle with a speed of 19.8 m/s. calculate the maximum height (in m) to which water could be squirted if it emerges from the nozzle and emerges with the nozzle removed.