subject
Physics, 28.09.2019 21:10 goldenarrow

Asubmarine is attempting to detect an aircraft carrier transiting the straits of malacca. the aircraft carrier has a source level of 90 db. the submarine's passive sonar has a directivity index of 20 db and a detection threshold of 15 db. biological noise in the straits is 54 db. the submarine's self noise is 50 db. given that tl = 10 log r, where r is the range in yards (we will show you where this comes from soon), at what range can the carrier just be detected?

ansver
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 13:20, ineedhelp2285
Adouble-slit experiment is performed with light of wavelength 600 nm. the bright interference fringes are spaced 1.8 mm apart on the viewing screen. what will the fringe spacing be if the light is changed to a wavelength of 400 nm? ?
Answers: 1
image
Physics, 22.06.2019 03:00, janeou17xn
Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process
Answers: 1
image
Physics, 22.06.2019 06:40, danny1687
Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.
Answers: 1
image
Physics, 22.06.2019 16:00, ewymer3901
Why does lightning travel from clouds to the ground?
Answers: 2
You know the right answer?
Asubmarine is attempting to detect an aircraft carrier transiting the straits of malacca. the aircra...

Questions in other subjects: