2.1 liters is the same as: cm3 and ml

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

Which best explains why an iceberg floats?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here