Lab for Lecture 3 Kiyana

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Bergen Community College *

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101

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Medicine

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Dec 6, 2023

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docx

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Bergen Community College Division of Health Professions Diagnostic Medical Sonography Program Name: Kiyana Castello Ultrasound Physics and Instrumentation 1 Lab for Lecture 3 Using the equation C = B x D, solve for B and D B = C/D D= C/B Express the following in scientific notation: 55,000 = 5.5 x 10^4 422,000,000 = 4.22 x 10^8 3 = 3 x 10 ^0 910 = 9.1 x 10^2 .005 = 5 x 10^-3 .1 = 1 x 10^-1 .00042 = 4.2 x 10^-4 .00009384 = 9.38 x 10^-5 6891.73 = 6.89 x 10^3 Give the logarithms of the following numbers: 10 Log 1 0.1 Log -1 100 Log 2 0.0001 Log -4 1,000,000 Log 6 0.000001 Log -6 Complete the following: 5,000 mm = 5 m 800 cm = 8 m 60 mm = 6 cm 71 m = 71000 mm 129 m = 129000 mm 324 cm = 3240 mm

Find the wavelength if C = 1540 m/s and f = 2 MHz 1540 m/s = 1.540 = 0.77 mm/s 2 The wavelength of ultrasound in a medium is 2.0 mm and the frequency is 5 MHz. Calculate the speed of sound in soft tissue. The speed of sound in soft tissue is 1540 m/s. If the wavelength in a given medium at a given frequency is 2 mm and the frequency is doubled, the wavelength becomes ___________________________ mm. 2/1 x 1/2 = 1mm Starting intensity is 2 mW/cm 2 . Gain is increased from 5 dB to 8 dB. What is the resulting intensity? 5dB to 8dB increased by 3dB Intensity is doubled I = 4mW/cm^2

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Lab for Lecture 3 Kiyana

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