this box if you'd like us to grade this scenario. in Das Auto A car which is 5 m from you travels directly away at a spe

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This Box If You D Like Us To Grade This Scenario In Das Auto A Car Which Is 5 M From You Travels Directly Away At A Spe 1 (55.64 KiB) Viewed 43 times

this box if you'd like us to grade this scenario. in Das Auto A car which is 5 m from you travels directly away at a speed of 36 m/s. The car stereo has an output power of 3.2 IF and it plays a sustained sound at 440 H:. Multiple Choice Questions (3 points each): 1) At what frequency do you observe the sound? a) 330 H: c) 398 H: b) 394 H d) 440 Hz Score for this scenario: e) 486 Hz 1 492 H2 / 12 2) What is the sound intensity level that you observe? You may assume that the sound waves spread out uniformly from the source in 3 dimensions so that the intensity obeys an inverse square law. a) 0 dB b) 20 dB c) 40 dB d) 60 dB e) 80 dB f) 100 dB Short Answer Question (6 points): 5 S The car has a mass of 1200 kg and it accelerates from rest to its top speed over the course of 20 s. Its speed for this time interval is given by v(t) = 0.0051 - 0.291 + 5.41, where t goes from 0 to 20 s and v is in m/s. • Draw a free body diagram for the car as it accelerates from rest. What is the net force required at t=2 s? . What is the minimum coefficient of static friction required to achieve this net force?