Which statement is true for a sound wave entering an area of warmer air? the wave travels faster and with the same wavelength. the wave travels at the same speed but with an increased wavelength. the wave travels at the same speed and with the same wavelength. the wave travels slower and with an increased wavelength. the wave travels faster and with an increased wavelength.

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes