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A scientific theory is

There are infinite black and white dots on a plane. Prove that the distance between one black dot and one white dot is one unit.

The electric field of a charge is defined by the force on what kind of particle?

Electrons (each with charge qe = 1.602 x 10-19) are ejected from a hot filament at a rate of 1.9 x 1013 electrons/second and then they are accelerated through an electric potential difference of 1000 V.

A softball with a mass of 0.11 kg goes moves at a speed of 12 m/s, then the ball is hit by a bat and rebounds in the opposite direction at a speed of 15 m/s. What is the change in momentum of the ball?

The length of a sheet of U. S. standard (letter size) paper is closest to: a. 8 centimeters b. 11 centimeters c. 29 centimeters d. 300 centimeters

If 2 grams of element X combine with 4 grams of element Y to form compound XY, how many grams of element Y would combine with 46 grams of X to form the same compound?

How do positive and negative charges interact with each other?

What is electricity

What happens to the density as one progresses through the layers of the earth from the lithosphere toward the inner core

What is tiny holes on the surface of a plant?