Awoman is sitting at a bus stop when an ambulance with a siren wailing at 317 hz approaches at 69 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= 69 mph = m/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= m/s d) what frequency would she hear as the siren moves away from her at the same speed (as in part c)? fa = hz

Ms. hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Brades exam guidelines exam instructions billing & payments & support question 6 of 20 : select the best answer for the question use this illustration to answer the question below. forms & resources al programs 9 ww linics 6. in the circuit shown in the figure above, suppose that the value of r, is 100k, and the value of r2 is 470 kq. at which of the following locations in the circuit would you measure the highest voltage with your meter? rvices 999999 a. between points b and c b. between points a and b c. between points b and e d. between points a and c eredu mark for review (will be highlighted on the review page) mend < < previous question next question

70 give a real life example showing how sensory neurons work with the motor neurons