What is the cause of farsightedness?

The earth is made mostly of metals and rocks. Where did this material come from? It was made by nuclear fission of uranium and other radioactive materials. It was produced in the Big Bang. It was created by chemical reactions in interstellar space.

The astronomer who discovered the dwarf planet Eris suggests there might be another object far beyond the Kupier belt.

The upward force that keep an object afloats is gravity? true or false

The (nonconservative) force propelling a 1.50 * 103-kg car up a mountain road does 4.70 * 106 J of work on the car. The car starts from rest at sea level and has a speed of 27.0 m/s at an altitude of 2.00 * 102 m above sea level.

Bill and Janet are pulling on opposite sides of a table. Bill pulls with a force of 250 N to the left, and Janet pulls with a force of 325 N to the right. What is the net force on the table?

How does a parallel circuit differ from a series circuit? A. A parallel circuit has one path for electrons, but a series circuit has more than one path. B. A series circuit has one path for electrons, but a parallel circuit has more than one path. C.

When a potassium ion (k+) enters a gaurd cell it creates a solution of what?

If two plates diverge at a rate of 1.3 cm/year, how much farther apart will the plates be after 200 million years?

What is root-mean-square current?

Which of these is an element? O carbon O air O carbon dioxide water