What activates a convection current starting the flow of liquid

Which statement best describes copper? A. It has a low resistance and prevents charges from moving freely. B It has a high resistance and allows charges to move freely. C. It has a high resistance and prevents charges from moving freely. D.

What is the area of the circle with a radius of 12.77m

If a force of 12 n is applied to an object with a mass of 2kg the object will accelerate at

Why do condors soar in circles in the sky when riding thermals?

Choose a time period from history. Which one of the four solstice/equinoxes would have been the most important to this time period? Why?

Solar energy is produced by A. fusion of light nuclei to make heavier ones B. the slow release of heat left over from the Sun's formation C. fission of heavy nuclei into lighter ones D. solar magnetism

A 72-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 5.0 m/s.

Roberto creates an animation titled "Flying through an Atom." The animation makes it seem as if the viewer passes all the way through an atom, starting from one side, then through the atom's center, and then leaving through the other side.

Which part of the ear vibrates at the frequency of sound waves

A submarine that is in the sea what principle is that