A noise created by small earthquake at a depth of 1200m in the ocean propagates upward and eventually reaches a bird flying above, at an altitude of 400m. Calculate how long it takes for the noise to reach the bird. For the seawater use E = 2.34 x 109 N/m2 , rho =1030kg/m3 , and for air, γ = 1.4, and T= 2700 K)
Answers: 3
![[R=286.6 m^2 /(sec^2 K) ][\tex]So [tex]v_w = \sqrt{ 1.4 * 270 * 286.6}](/tpl/images/0771/7932/d6b96.png)
 
Another question on Physics
Physics, 22.06.2019 13:10
The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.
Answers: 3
Physics, 22.06.2019 16:00
The amount of potential energy possessed by an elevated object is equal to what?
Answers: 1
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 23.06.2019 00:30
What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr
Answers: 2
You know the right answer?
A noise created by small earthquake at a depth of 1200m in the ocean propagates upward and eventuall...
Questions
Mathematics, 17.03.2020 23:40
English, 17.03.2020 23:40
Mathematics, 17.03.2020 23:40
Mathematics, 17.03.2020 23:40
Biology, 17.03.2020 23:40
