Page 1 of 1
a. 3.75 m/s 8. Consider the 24. If two fire crackers produce a sound level of 140 dB and 150 dB. What is the combine sou
Posted: Mon May 02, 2022 9:10 pm
by answerhappygod
- A 3 75 M S 8 Consider The 24 If Two Fire Crackers Produce A Sound Level Of 140 Db And 150 Db What Is The Combine Sou 1 (31.71 KiB) Viewed 61 times
a. 3.75 m/s 8. Consider the 24. If two fire crackers produce a sound level of 140 dB and 150 dB. What is the combine sound level? a. 290 dB b. 10 dB c. 145 dB d. 150.4 dB 25. At 17°C an aluminum rod has an inner diameter of 8.08cm and a brass ring has a diameter of 8.00 cm. If the temperature of expansion for brass is 1.9 x 105 (°C)" and the temperature coefficient of expansion for aluminum is X 2.4 x 10% (°C) to what temperature the brass must be heated, so the ring be heated so that it will just slop over the rod? a. 543.3°C b. 526.3 °C C. 399.7°C d. 433.7°C 26. 2500 J heating is added from a system and 1800) of work is done by the system. What is the change of internal energy of the system? a. 4300 b. -700 C. 700) d. - 4300) 27. A rock group is playing in a club. Sound emerging from the door in all direction uniformly. If the decibel level is 60 dB at a distance 0.6 m from the door. What is the decibel 1.2 m from the door? d. 45 dB a. 30 dB b. 15 dB a. 18.0 N C. 54 dB