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
bija089 [108]
3 years ago
13

How do the valves do in the heart​

Physics
1 answer:
Rina8888 [55]3 years ago
8 0

Answer:

The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.

Explanation:

You might be interested in
um ima em forma de barra atravessa uma espira retangular, como mostra a imagem. Sabendo que esse e um caso em que o fluxo magnet
SashulF [63]

Answer:De acuerdo con la ley de inducción electromagnética de Faraday, la tasa de cambio del flujo magnético vinculado con la bobina es directamente proporcional a la fem inducida en la bobina.

e = - d∅ / dt

Entonces, si el cambio de flujo es mayor, la fem inducida es mayor.

¡espero haber ayudado a tener un buen día! :)

Explanation:

 According to the Faraday's law of electromagnetic induction, the rate of change of magnetic flux linked with the coil is directly proportional to the induced emf in the coil.

e = - d∅ / dt

So, if the flux change is more the induced emf is more.

i hope i helped have a good day! :)

7 0
3 years ago
Piano tuners tune pianos by listening to the beats between the harmonics of two different strings. When properly tuned, the note
mote1985 [20]

Answer:

Frequency = 658 Hz

Explanation:

The third harmonics of A is,

f_{A}=(3)(440Hz)=1320Hz

The second harmonics of E is,

f_{E}=(2)(659Hz)=1318Hz

The difference in the two frequencies is,

delta_f = 1320 Hz - 1318 Hz = 2 Hz

The beat frequency between the third harmonic of A and the second harmonic of E is,

delta_f = 3f_{A}-2f_{E}

f_{E}=\frac{3f_{A}-delta_f}{2}

We have calculate the frequency of the E string when she hears four beats per second, then

delat_f = 4 Hz

f_{E}=\frac{3(440Hz)-4Hz}{2}

f_{E}=658Hz

Hope this helps!

5 0
3 years ago
Why does an empty plate not heat up in the microwave?
Leona [35]
Because the plate doesn't have water, and it's water which is heated by the microwave
7 0
3 years ago
At t = 0, a car registers at 30 miles/hr. Forty seconds later, the car’s velocity is now at 50 miles/hr. Assuming constant accel
ratelena [41]
D.

50 mph - 30 mph= 20 mph net velocity
change.
20mph/3600 seconds/hour= .00555 MPS
.0055 miles per second


40 seconds to complete the change
.0055/40= .000138

7 0
2 years ago
Question 3 of 10
AlexFokin [52]
The answer is Jupiter
6 0
3 years ago
Read 2 more answers
Other questions:
  • Compute the resistance of a hardened copper rod 2 meters long and 8 mm in diameter if resistivity of the material is 1.756 x 10^
    13·1 answer
  • (Will give brainliest answer)
    7·2 answers
  • When designing an experiment, the first step is to ____.
    9·1 answer
  • The potential difference between two parallel conducting plates in vacuum is 165 V. An alpha particle with mass of 6.50×10-27 kg
    7·1 answer
  • A beaker of ice and water is placed on a hot plate. is it a physical or chemical change
    11·1 answer
  • What option lists the types of electromagnetic waves in order of increasing wavelength?
    8·1 answer
  • Could I get help on this question please
    6·1 answer
  • Henry mixed salt and water together in a cup until he observed a clear solution. He measured the mass of the solution. Then he p
    5·2 answers
  • Best Answer gets Brainiest
    5·1 answer
  • Choose the force diagram (freebody diagram) that best represents the forces acting on the object.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!