In a combustion engine, fuel is burned to produce mechanical energy. Which of the following shows that an energy transformation has taken place? there is no change, matter is destroyed, heat is produced, or matter is created.

The current in one wire is 5.00 a. what is the current in the other wire.

Which changes to observed time and length occur when objects approach the speed of light? Time moves slower and length increases. Time moves slower and length decreases. Time moves faster and length increases. Time moves faster and length decreases.

What is the lowest possible temperature

A boy pulls a wagon full of newspapers down the sidewalk at a constant acceleration. Suddenly, half the newspapers fall off the wagon. If the boy continues to pull with the same force as before, what happens? A. The net force remains constant. B.

What is the common name for tropospheric ozone

Is there any science behind unicorns / pegasis?

Rays traveling parallel to the principle axis of a concave mirror will reflect out through the mirrors focus? a. true b. false

Which of the mixtures in figure 1 is a solution?

Light is traveling in air at a speed of 300,000 km/s. Which substance would cause the light to refract the LEAST? A. ruby (speed of light = 170,000 km/s) B. glass (speed of light = 200,000 km/s) C. water (speed of light = 225,000 km/s) D.

What is table salt (NaCl) formed by? The combination of two nonmetals. The splitting apart of a metal and a nonmetal. The combination of a metal and a nonmetal. The combination of two metals.