BettS' MCO (2cach) Sets.cess..socicies a.1.00 x 10 1. A jet plane has a sound level of 150.00 dB. What is the intensity in W/m ? b.1.00 x 103 c.1.00 x 101 d. 1.00 x 10' e. 1.00 x 104 2. A point source emits sound with a power output of 1:00x10" wants. What is the intensity (in W/m-) at a distance of 10.0 m from the source? a.8.00 b.80.00 c.50.00 d.100.00 e.10.00 3: A rectangular bar has a volume of 2.00 m is submerged under water to a depth of 5.00m. What is the change in its volume (in m )? (Assume B = 2 x 10' N/m ) a. 0.10 6.0.50 c.12.00 d.10.00 e.1.50 4. Water stands at depth 30.0 m behind a dam of width 250.0 m. Calculate the force exerted on the dam by water? a. 11.0 x 10% b. 2.0 x 10' c. 5.0 x 10 d. 7.0 x 10 c. 10.0 x 10' 5. What fraction of an iceberg is submerged? (pice - 917 kg/m . /sea - 1.03 x103 kg/m3) A.95% b.93% C.91% d.89% e.779% 6. The Venturi tube, device used to measure flow speed in a pipe, has a ratio of cross section area 0.50. If the difference in pressure between the two ends is 4 atm. What is the speed (in m/s) of water in the small end? a.0.10 b.0.40 c.0.70 d.10.00 c.2.88