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memorize.ai (lvl 286)

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Section 1

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logarithm

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Math

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Date created

Mar 1, 2020

Cards (27)

Section 1

(27 cards)

logarithm

Front

the exponent that a specified base must be raised to in order to get a certain value

Back

microseconds

Front

units for period, PD, PRP

Back

mW/cm^2

Front

units for intensity

Back

1 or 0 (bistable)

Front

values for bit

Back

decrease by a factor

Front

divide by that number

Back

volume of a sphere

Front

4π r^3 /3

Back

area of a circle

Front

A=πr² used to assess OB biometry with the ellipse feature

Back

65 cm

Front

.65 m

Back

100,000 cm

Front

1 km

Back

binary number system

Front

A system with two numeric values of 0 and 1, which are also referred to as off or on. and is used to determine echo placement on our screens

Back

increase by a factor of

Front

multiply by that number

Back

binary word

Front

A collection of bits that represents a sample

Back

bit (binary digit)

Front

smallest unit of digital memory

Back

doubles the power or intensity

Front

adding 3 decibels

Back

Decibel (dB)

Front

used to compare the relative powers, intensities, or amplitudes of 2 sound energy levels.

Back

Hz

Front

frequency and PRF units

Back

volume

Front

length x width x height x 0.523 used to assess ovaries, bladder, prostate, and cardiac chambers

Back

reciprocal

Front

inverse of a number

Back

halves the power or intensity

Front

subtracting 3 decibels

Back

directly proportional

Front

two factors that are related to each other and as one changes the other changes the same way

Back

mm and cm

Front

distance units, wavelength, SPL

Back

5 mm

Front

0.005 m

Back

area

Front

Length x Width

Back

indirectly proportional

Front

two factors that are related to each other and as one changes the other changes in the opposite way

Back

cm^3

Front

volume units

Back

7MHz

Front

7,000 kHz or 7,000,000 Hz

Back

cm^2

Front

units for area

Back