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)

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.

Ajet plane flying 600 m/s experience an acceleration of 4.0 g when pulling out of a circular dive. what is the radius of curvature part of the path in which the plane is flying? a) 7100 m b) 650 m c) 9200 m d) 1200 m