A substance has a volume of 4,000 cm and a mass that is 2,000 g. What is the density of the substance.

What SI unit replaces the pound. what does this measure

A wave that can travel only through what is a mechanical wave

Discuss why the article says the fact that we're in our universe complicates our understanding of the expansion of the universe.

A 25-kg child sits at the top of a 4-meter slide. After sliding down, the child is traveling at 5 m/s.

Assume that you have two objects, one with a mass of 10 kg and the other with a mass of 18 kg, each with a charge of - 0.027 c and separated by a distance of 9 m.

Why isn't the size of something considered a physical property?

A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 1.

A car going at 30 m/s undergoes an acceleration of 2 m / (s^2) for 4 seconds. how far did it travel while accelerating?

The strength of and electromagnet can be altered by

Which of these is a property of most nonmetals? Question 3 options: poor conductors of both heat and electricity reactive lustrous appearance good conductor of heat, but not electricity malleable when a solid