How many microphones are in a megaphone?

What causes a ray of white light to split into seven colors when passed through a prism? A. refraction B. reflection C. filtering D. absorption

A 12.0 V battery is connected to two resistors in series: R1 = 12.00 , R2 = 4.00 .

If the current flowing through an electric heater increases from 6 to 12 amp while the voltage remains the same, the heat produced by the heater will be a. reduced one-half. c. two times the original heat. b. unchanged. d.

You slide a slab of dielectric between the plates of a parallel-plate capacitor. As you do this, the potential difference between the plates remains constant.

If we have evidence that certain gases are harmful to our atmosphere, then why are we still using them?

According to Newton's second law of motion acceleration or an object depends upon the ___ of the object and the ___ Acting on it. I'm confused on what the blanks are. I can't find them.

What is the concentration of H + ions at a pH = 7?

Suppose that Paul D. Trigger fires a bullet from a gun. Will the speed of the bullet leaving the muzzle will be the same as the speed of the recoiling gun? Explain.

A certain rock contains large jagged pieces of other rocks cemented by fine particles what type of rock is this explain

Could a nucleus that has one proton but no neutrons exist?