Why is density used to determine the identity of matter?

Which type of energy increases when an object's atoms move faster? A. nuclear B. mechanical C. chemical D. thermal

Which happens during the day at the beach? A. The water is warmer than the land, and air sinks over the water B. The water is cooler than the land, and air sinks over the water C. The water is warmer than the land, and air rises over the water D.

Two people are pushing a couch from the same side. One person pushes with a force of 2 N. The other person pushes with a force of 4 N. a) The couch will move with a force of 8 N. b) The couch will move with a force of 2 N. c) The couch will not move.

A plane has a cruising speed of 250 miles per hour when there is no wind. at this speed, the plane flew 300 miles with the wind in the same amount of time it flew 200 miles against the wind. find the speed of the wind.

Renald completed only one trial of his experiment. What effect will this most likely have? The results are more likely to have errors. The results are more likely to be precise. The experiment will be harder to replicate.

Which of the following is not an assumption that scientists must make about the natural world

The density of uranium is 18.8 g/cm3. part a what is this value in kilograms per cubic meter?

What name is given to the variable we plot on the x-axis? A. The dependent variable B. The independent variable c. The linear variable D. The inverse variable

What force is required to accelerate a body with the mass of 15 kilograms at a rate of 8m/s2?

Indicate whether the statement is true or false. A scientific fact is something that is absolute and unchanging.