1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dolphi86 [110]
3 years ago
14

During the contraction of the heart, 65 cm3 blood is ejected from the left ventricle into the aorta with a velocity of approxima

tely 103 cm/s. The blood volume traverses the aortic arch, exiting with the same speed but opposite direction. Assume the mass density of the blood is 1060 kg/m3 blood, the aortic arch remains stationary, and that the heart rate is 59 bpm. What is the average force exerted by the blood on the wall of the aorta.
Physics
1 answer:
vova2212 [387]3 years ago
8 0

Answer:

The value  F  =  0.1396 \ N

Explanation:

From the question we are told that

   The volume blood  ejected is  V  =  65 \ cm^3  = 65*10^{-6} \  m^3

    The velocity of the blood ejected is  v  = 103 \  cm/s  = \frac{103}{100} = 1.03 \ m/s

    The density of blood is  \rho = 1060 \  kg/m^3

     The heart beat is R = 59 \  bpm(beats \  per \  minute) = \frac{59}{60}= 0.9833\ bps

The average force exerted by the blood on the wall of the aorta is mathematically represented as

      F  =  2 * \rho  *  V  *  R *  v

=>    F  =  2 * 1060  *  65*10^{-6}  *  0.9833 *  1.03

=>    F  =  0.1396 \ N

You might be interested in
A cardboard box has four forces acting upon it, as shown in the diagram below. What is the magnitude of the unknown force, Funkn
shutvik [7]
D. 11N
Nznsnksksksksmsmsms
4 0
2 years ago
The mini-refrigerator fire was most likely caused by what type of wiring?
Nimfa-mama [501]

Answer: The copper wiring most likely caused the mini-refrigerator fire.

Explanation: A mini-refrigerator may have one or more evaporator fan motors. These motors have copper wiring. In some situation these copper wires gets overheated. It may result to the firing of the mini-refrigerator.

Therefore, the mini-refrigerator fire was most likely caused by copper wiring.

7 0
3 years ago
Por una resistencia de 10 Ω fluyen 5A. ¿Cuál será la diferencia de potencial que se le debe aplicar a la resistencia?
ra1l [238]

Answer:

V = 50 volts

Explanation:

Given that,

Resistance, R = 10 ohms

Current, I = 5 A

We need to find the potential difference across the circuit. We know that,

V = IR

Put all the values,

V = 5 × 10

V = 50 volts

Hence, the potential difference is equal to 50 volts.

8 0
3 years ago
Phosphorus trichloride is used in the production of chemicals that keep plants from growing in a specific area. This compound is
Sever21 [200]
The Answer Is P should come first.
5 0
2 years ago
Read 2 more answers
A 500 gram mass attached to a horizontal spring
Daniel [21]
Is that a question? .
..............................
8 0
3 years ago
Other questions:
  • What is the name for a wave that requires energy to produce it and a medium to travel through?
    8·1 answer
  • Four model rockets are launched in a field. The mass of each rocket and the
    14·1 answer
  • The average mass of a car in the US is 1.440 x 10^6 g. Express this mass in kg.
    11·1 answer
  • Calculate the height from from which a body is released from rest if its velocity just before hitting the ground is30m\s
    13·1 answer
  • You drive a car for 2.0 h at 60 km/h, then for another 3.0 h at 85 km/h. What is your average velocity
    8·1 answer
  • A student investigated
    9·1 answer
  • Can you help me please?
    7·2 answers
  • 3- A ball of mass 0,50 kg falls and hits the floor at 10m/s,
    10·1 answer
  • Please explain what is a Energy is
    14·1 answer
  • A lack of precision in scientific measurement typically arises from?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!