Mhz Ultrasonic
Mhz Ultrasonic
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 NEW PROFESSIONAL ULTRASOUND THERAPY MACHINE 5 MHz UNIT  US $74.95
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 PORTABLE 1MHZ ULTRASOUND MACHINE PAIN THERAPY MASSAGER US $69.95
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 Ultrasonic Body Massager Ultrasound Theropy 110 220v J6 US $14.36
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 NEW PORTABLE 3 MHZ ULTRASOUND MACHINE THERAPY MASSAGER US $94.95
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 Ultrasonic Massager for Pain Relief Wrinkles Cellulite US $50.95
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 ULTRASONIC ULTRASOUND BODY MASSAGER PAIN THERAPY J6 US $14.36
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 Ultrasonic Body Beauty Massager Ultrasound Theropy J6 US $14.29
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 NEW Ultrasonic 5MHz Facial Body Ultrasound Massager US $74.88
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 ULTRASONIC ULTRASOUND BODY MASSAGER PAIN THERAPY US $34.95
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 NEW PORTABLE ULTRASOUND THERAPY 1 MHz ULTRASONIC UNIT US $29.99
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 Ultrasonic Body Massager Ultrasound Theropy 110v 220v US $40.99
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 110 220v Ultrasonic Body Massager Ultrasound Theropy J6 US $14.91
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 Ultrasound Ultrasonic Facial Body Beauty Slim Massager US $41.99
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 Ultrasonic Ultrasound Massager Pain Therapy 1 MHz New US $29.99
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 Infrared Ultrasound 1MHz Toning Body massager US $65.95
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 ULTRASOUND BODY FACIAL THERAPY MASSAGER MACHINE 1MHz US $37.99
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 Ultrasonic Ultrasound Massager Pain Therapy 1 Mhz US $44.99
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 Ultrasonic slimming massageržbeauty facial massager US $69.99
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 Intelligent ultrasonic slimming massagerbeauty facial US $99.99
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 Ultrasound Ultrasonic Infrared Pain Toning Massager US $65.95
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 Mettler Sonicator 740 Professional Ultrasound Massager US $1,345.83
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 Ultrasonic 5MHz Facial Body Ultrasound Massager w FDA US $49.98
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 ULTRASONIC ULTRASOUND BODY MASSAGER PAIN THERAPY US $35.99
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 Ultrasonic Beauty Ultrasound MassageHeatSuper Quality US $51.95
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 ULTRASONIC ULTRASOUND BODY MASSAGER PAIN THERAPY US $51.95
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 Mini 3MHz Ultrasonic massager for skin clean and beauty US $51.99
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 Facial Flow Beauty Ultrasonic Appliance Massage Machine US $99.75
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 NEW Metron Accusonic PLUS 1 3 MHZ Ultrasound Massager US $857.99
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 Metron Accusonic PLUS 1 3 MHZ Ultrasound Massager US $857.99
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 NEW Metron Accusonic 1 MHZ AS270 Ultrasound Massager US $824.99
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 1Mhz Portable Home Ultrasound Machine Massager GEL US $111.99
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 1Mhz Portable Home Ultrasound Therapy Machine 8oz GEL US $111.99
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 Mettler Sonicator 740X Professional Ultrasound Massager US $1,664.58
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 1Mhz Portable Home Ultrasound Ultra Sound Unit Device US $104.99
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 NEW Portable Ultrasound Machine 4 Bursitis Scar Tissue US $119.99
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 Facial Beauty Ultrasonic Appliance Massager Machine US $99.75
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 Ultrasound Body Pain Therapy Ultrasonic Facial Massager US $49.00
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 NEW Ultrasonic 1MHz Facial Body Ultrasound Massager US $39.89
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 1Mhz Therapeutic Home Ultrasound Machine Unit Device US $104.99
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 NEW 1Mhz Portable Home Ultrasound Machine Therapy Unit US $104.99
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 Ultrasound Ultrasonic MIni Station Pain Body Therapy US $52.95
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 Ultrasonic Electro TherapyOversize2Probe w pre heat US $59.99
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 220V Ultrasonic Body Massager Ultrasound Theropy US $49.98
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 ULTRASOUND ULTRASONIC MASSAGER PAIN THERAPY 1 Mhz US $45.99
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 New Ultrasonic Beauty Body therapy Slimming Massager US $78.90
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 ULTRASOUND ULTRASONIC BH MASSAGER PAIN THERAPY 1 Mhz US $45.99
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Please help with Physics 11 question?
A sonar generator on a submarine produces a periodic ultrasonic waves at a frequency of 2.50 MHz. The wavelength of the waves in sea water is 4.80 x 10 ^ -4 m. When the generator is directed downward, an echo reflected from the ocean floor is received 6.7 s later. How deep is the ocean?
use v = wavelength * frequency. wavelength = 4.8 * 10^-4 m and frequency = 2.5 * 10^6 hertz, so v = 1200 m/s. Then, us d = velocity * time. d = 1200 * 6.7 seconds = 8040 m. Since this distance is for the wave going there and back, divide it by 2 to get 4020 m.
