A rescue plane flies horizontally at a constant speed searching for a disabled boat. When the...

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A rescue plane flies horizontally at a constant speed searching for a disabled boat. When the plane is directly above the boa

An ultrasonic tape measure uses frequencies above 20 MHz to determine dimensions of structures such as buildings. It does so

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Answer 1

Answer #1

L 21/2 su? t que L = 13 a) Vs = 343 m/s ta 2.10 dec 2) 513 n = 2.10 8343

=) na 3x 2410X343 m JIB - 599.35m So in 3x599.330 = 399.55m =) Yarare = 338.55 miş = 190-26miş b) altitude z 2.10 a 599.33m.

= 1 = 23.0MH2 = 23x106 Hz a) t = 24ms distance = 24x10 3 x 343 m = 8.23 on So distance of the building becomet. 8.23 m = 4.12

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