5. You're holding a sound sensor in your hand as you leave the library. The sensor display reads

40 dB inside the library. After you walk out the front door, the sound of traffic on the busy street

causes the sensor to read 80 dB. How many times louder is it outside the library compared with

inside? (8 points)

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

2.77 x 10^-3 its for plato user