A sound wave has a certain amplitude and a certain frequency. A second sound wave is quieter and lower in pitch than the first sound wave. The second wave has A) a larger amplitude and a greater frequency.

B) a larger amplitude and a smaller frequency.

C) a smaller amplitude and a greater frequency.

D) a smaller amplitude and a smaller frequency.

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "

Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (box after the "10" in answer is for the