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
Elanso [62]
2 years ago
6

Countercurrent exchange is evident in the flow of _____.

Physics
1 answer:
Anna35 [415]2 years ago
4 0

Answer:

In the water flow mechanism in fishes when they take in oxygen using the gills

Explanation:

Fish gills are organ that facilites respiration under water,its Mechanism is described below,first water is pulled in the mouth of the fish and pumped over the gills,while the blood flow in opposite direction known as counter current exchange helps in pushing low oxgen water away and retaining high oxgen in the fish blood.

You might be interested in
How are acceleration and speed related​
Gre4nikov [31]

Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing. Comment on robshowsides's post “Speed is the magnitude of velocity.

Explanation:

hope it helped tee hee

6 0
3 years ago
Read 2 more answers
Velocity is described by __ and time
klasskru [66]

Answer:

direction and time

Explanation:

4 0
3 years ago
Describe ehat happens at the molecular level during meilting
Marta_Voda [28]
The molecules of a solid vibrate faster so that they start spreading out to become a liquid. This energy makes them vibrate faster so the bonds between molecules can't interact all that well anymore creating more distance. The stronger the bonds between the molecules the higher the energy (temperature) has to be to get them away from each other. Hope I didn't confuse you too much!
3 0
3 years ago
A wave With wavelength 20 m has a frequency of 12 Hz what is the waves speed
pentagon [3]

Answer:

240m/s

Explanation:

The equation to calculate is wavelength= velocity/ frequency so to find the velocity you would have to multiply frequency by wavelength.

7 0
3 years ago
A car starts from rest and accelerates uniformly for a five seconds along a straight road. If speed obtained by the car is 72 km
Step2247 [10]

Answer:

50 meters

Explanation:

Let's start by converting to m/s. There are 3600 seconds in an hour and 1000 meters in a kilometer, meaning that 72km/h is 20m/s.

v_f=v_o+at

Since the car starts at rest, you can write the following equation:

20=0+a(5) \\\\a=20\div 5=4 m/s^2

Now that you have the acceleration, you can do this:

d=v_o+\dfrac{1}{2}at^2

Once again, there is no initial velocity:

d=\dfrac{1}{2}(4)(5)^2=2 \cdot 25=50m

Hope this helps!

8 0
3 years ago
Other questions:
  • At the end of a bike ride up a mountain, Chris was at an elevation of 500 meters above where he started. If Chris's mass is 60kg
    8·1 answer
  • A mixer-grinder has an efficiency of 65 percent. If the output work is 50 joules, what is the amount of input work required?
    12·1 answer
  • A laptop computer draws 5 A of current with a voltage of 19 V. Which is the power used by the computer?
    13·2 answers
  • If a psychologist were to run an experiment measuring the effects of temperature on aggression the differing temperature would b
    13·1 answer
  • An object is thrown with a force of 30 Newtons and ends up with an acceleration of 3 m/s ^ 2 due to that throw. What is the mass
    6·1 answer
  • →13 Points← List the four key principles for Newton’s 3rd law:
    5·1 answer
  • Which one is the answer ?
    11·1 answer
  • 17. If a good is a luxury, what type of response will it cause?
    10·1 answer
  • Hola alguien pa hablar!!!!!!!!!!!​
    13·1 answer
  • Why is Franco super cool
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!