For standing wave on string with fixed two ends (a) write down the speed equation,
(b) list equations for fundamental frequency, nth harmonics frequency and wavelength,
(c) draw 1st, 2nd, and 3rd standing waves patterns.

Ineed with these last two questions: 1) what are two types of cold air masses that influence the weather in north america? name them and describe their humidity. 2) describe the motion of a cold air mass and a warm air mass and the weather you would expect at a warm front and an occluded front.

Energy flows from the producer level to the level. is called

While preforming an experiment involving a reaction between two chemicals the scientist observes that the reaction container has become warm the observation is an example of