Awoman is sitting at a bus stop when an ambulance with a siren wailing at 283 hz approaches at 60 miles per hour (mph). assume the speed of sound to be 343 m/s.

a) how fast is the ambulance moving in meters per second? (perform the necessary unit conversion) vs= 60 mph = /s

b) what frequency does the woman hear? fa = hz

c) what speed (vs) would the ambulance be traveling in order for the woman to hear the siren at an approaching frequency of 350 hz? vs= /s

d) what frequency would she hear as the siren moves away from her at the same speed (as in part c)? fa =

Which of the following is typically not a characteristic of a foraging society? a. foraging societies are nomadic groups. b. foraging societies consist of small groups with ties based on kinship. c. individuals in foraging societies have few personal possessions. d. foraging societies have formal social and class structures

Ms.ringer asked her class "what are the favorite colors of the students in our school" which student correctly deceives ms.ringer's question

Select the correct text in the passage. the moving continents affect all subsystems on earth. which sentence identifies a potentially negative consequence of shifting continents? the supercontinent pangaea began to break up about 175 million years ago. [during this process, more coastline was exposed as the landmasses separated]. [the rearrangement and displacement of these huge landmasses resulted in the diversity of plants and animals we see on earth today]. [the movement of the plates sometimes leads to earthquakes and tsunamis]. however, over the long course of earth's history, their effects are usually minimal. in oceans, the plate movements usually lead to seafloor spreading. [seafloor spreading often results in the formation of underwater ranges of mountains].