Answer:
12.9 mm
Explanation:
From v = fλ where v = speed of wave = blood flow rate = 1.5 × 10⁻² m/s and f = frequency of wave = heart rate = 70 beats per minute = 70/60 beats per second and λ = wavelength of waves in Harriet's aorta.
λ = v/f = 1.5 × 10⁻² m/s ÷ 70/60 beats per second
= 6 × 1.5 × 10⁻²/7
= 1.29 × 10⁻² m
= 12.9 mm
When the wavelength of the waves of blood in Harriet's aorta, created by her beating heart is 12.9 mm
From v = fλ
where that v is = speed of wave = blood flow rate is = 1.5 × 10⁻² m/s and
f = frequency of wave Then = heart rate is = 70 beats per minute = 70/60 beats per second and also λ is = wavelength of waves in Harriet's aorta.
Then λ = v/f = 1.5 × 10⁻² m/s ÷ 70/60 beats per second
After that = 6 × 1.5 × 10⁻²/7
= 1.29 × 10⁻² m
Therefore, = 12.9 mm
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