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cestrela7 [59]
3 years ago
7

E4.Suppose Galileo’s pulse rate was 75 beats per minute. How many beats per second is this? What is the time in seconds between

consecutive pulse beats? How far (in meters) does an object fall in this time when dropped from rest? What is this distance in feet (use the conversion factors on the inside front cover)?
Physics
1 answer:
Umnica [9.8K]3 years ago
3 0

Answer

given,

Galileo's pulse rate = 75 beats per minutes

Beats per second

1 minutes = 60 s

pulse rate = \dfrac{75}{60}

                  = 1.25 beats/s

times in second

t = \dfrac{1}{1.25}

      t = 0.8 s/pulse

distance of the object

initial velocity = 0 m/s

s = ut + \dfrac{1}{2}gt^2

s = \dfrac{1}{2}\times 9.8\times 0.8^2

      s = 3.14 m

distance in feet

  1 m = 3.28 ft

 3.14 m = 3.14 x 3.28 ft

             = 10.3 ft

distance in feet is equal to 10.3 ft.

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Answer:

Acceleration, a=-1.5\ m/s^2

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It is given that,

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Consider a cylindrical segment of a blood vessel 2.70 cm long and 3.10 mm in diameter. What additional outward force would such
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This question is incomplete, the complete question is;

- Calculate the difference in blood pressure between the feet and top of the head of a person who is 1.80m Tall

- Consider a cylindrical segment of a blood vessel 2.70 cm long and 3.10 mm in diameter. What additional outward force would such a vessel need to withstand in the person's feet compared to a similar vessel in her head

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Explanation:

Given the data in the question;

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ΔP = pgh

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now we substitute

ΔP = 1060 × 9.8 × 1.80

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F = PA

we substitute

F = 18698.4 Pa × 2.6 × 10⁻⁴ m²

F = 4.86 N

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