Why dog pants during summer use the cocept of evaporation

Answers

Answer 1
Answer: Every "warm-blooded" living thing needs a way to make heat and keep it
when its body is too cold inside, and a way to get rid of extra heat when
its body is too hot inside.

Moving around (using muscles) makes heat inside, and the animal needs
a way to get rid of the heat.  Fast.

Evaporation is a very effective way to get rid of heat.

Human animals do it by perspiring.  We excrete moisture through our skin,
and when the moisture evaporates, that takes heat away very efficiently.
That's why we like to fan ourselves when we're hot ... moving more air
past our skin makes moisture evaporate faster.

Dogs don't perspire, so they badly need another way to get rid of heat
in a hurry.

They do it through their mouth.  They put water in their mouth if it's available,
or else just collect a lot of saliva in there if there's no other water, and then
they blow air over it to evaporate it and get rid of heat.  Panting moves more
air over the moisture, which causes more evaporation and more heat loss.

Related Questions

1. Coherent beams with wavelengths of 400 nm intersect at points on the screen. What will be observed at these points interference maximum or minimum, if the optical path difference of the beam is in the 1st case A1=20 um and in the 2nd - A2=15 um? Find the order of minimum and maximum. 2. An installation for observing Newton's rings in reflected light is illuminated by monochromatic light incident normally to the plate surface. The distance between the second and fourth dark rings is 5 mm. Find the distance between the eighth and sixteenth light rings. 3. Find the angle between the main planes of the polarizer and the analyzer if the intensity of the natural light passing through the polarizer and the analyzer decreased by 5 times.
a 42.3 kg girl and a 7.93 kg sled are on the surface of a frozen lake, 15.0m apart and linked by a rope, but not moving yet. then the girl pulls on the rope, exerting a 5.76 N force on the sled, pulling it toward her. how far from the girl's original position do they meet?
Select all that apply.A vector always consists of _____. A) a force B) mass C) size D) direction
SPEAR is a storage ring at the Stanford Linear Accelerator which has a circulating beam of electrons that are moving at nearly the speed of light (2.998 108 m/s). If a similar ring is about 92.0 m in diameter and has a 0.40 A beam, how many electrons are in the beam
A very small 100-g object is attached to one end of a massless 10-cm rod that is pivoted without friction about the opposite end. The rod is held vertical, with the object at the top, and released, allowing the rod to swing. What is the speed of the object at the instant that the rod is horizontal?

A sound wave has a wavelength of 0.450 meters. If its speed in cold air is 330 meters/second, what is the wave's frequency?

Answers

Most of the information's required are already given in the question. Based on those information's the answer can be easily deduced.
Wavelength of the sound wave = 0.450 meters
Speed of the sound wave = 330 meters per second
We already know
v=fλ
330 = f * 0.450
f = 330/0.450
  = 733.33 hertz
So the frequency of the wave is 733.33 hertz

Most of the information's required are already given in the question. Based on those information's the answer can be easily deduced.

Wavelength of the sound wave = 0.450 meters

Speed of the sound wave = 330 meters per second

We already know

v=fλ

330 = f * 0.450

f = 330/0.450

 = 733.33 hertz

So the frequency of the wave is 733.33 hertz



As an object sinks in a fluid, the buoyant force ____.a. increases
c. remains the same
b. decrease
d. depends on the shape

Answers

Beginning when the bottom of the object first touches the water,
and as it descends and more and more of it goes under, the
buoyant force on it increases during that time.

As soon as the object is completely underwater, it doesn't matter
how deep under it is, the buoyant force on it remains the same.

As an object sinks in a fluid, the buoyant force decrease.



Hope this helped.


Which of these diagrams best represents the steps in the formation of planets? A) The sun is born > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born
B) The clouds flatten into a disc > The sun is born > The clouds condense > the planets are born
C) The clouds of dust and gases rotate at high speed > The clouds condense > The sun is born > The planets are born
D) The clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born

Answers

Answer:

D) The clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born

Explanation:

Planets are formed from Planetary nebula. The cloud of dust and gases condenses under its own weight. The condensed matter starts rotating at high speeds and gathers more mass. The core forms the star and rest of it eventually flattens into an elliptical disc from which planet is born. Thus, the correct sequence is: D) The clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born.

The right answer for the question that is being asked and shown above is that: "C) The clouds of dust and gases rotate at high speed > The clouds condense > The sun is born > The planets are born " This is the diagram that best represents the steps in the formation of planets

If the current in each wire is the same, which wire produces the strongest magnetic field?-a wire that is 1mm thick and not coiled
-a wire that is 2mm thick and not coiled
-a wire that is 1-mm thick and coiled
-a wire that is 2-mm thick and coiled

Answers

If the current in each wire is the same, the wire that produces the strongest magnetic field is a wire that is 2 mm thick and coiled. The correct option is d.

What is a magnetic field?

A magnetic field is a false field of current created. This interactive animation shows how the magnetic field relies on the direction of the current that creates the field and is strongest in the vicinity of the wire.

In every wire, the current is the same. If a wire carrying electricity is wound with additional turns, the magnetic field generated by the wire grows. Low resistance to the current would result from a thick wire. Therefore, the highest magnetic field would be produced by a 2-mmthick wire that is coiled.

Therefore, the correct option is d. a wire that is 2 mm thick and coiled.

To learn more about the magnetic field, refer to the link:

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Answer: option 4: A wire that is 2-mm thick and coiled.

Explanation:

The current in each wire is same. The magnetic field due to a current carrying wire increases if the wire is coiled with the more number of turns. A thick wire would cause low resistance to the current. Hence, a 2-mm thick wire which is coiled would produce the strongest magnetic field.

In 3.0 seconds, a wave generator produces 15 pulses that spread over a distance of 45 centimeters. Calculate its period.0.022 s

0.066 s

0.20 s

0.33 s

Answers

Period = (time) / (number of pulses)

= (3 sec) / (15 pulses)

= 0.2 sec/pulse

an object is attached to a vertical ideal massless spring and bobs up and down between the two extreme points a and b. when the kinetic energy of the object is a minimum, the object is located

Answers

The correct answer for the question that is being presented above is this one: "A) at either A or B. "
Here are the following choices:
A) at either A or B. 
B) midway between A and B. 
C) 1/3 of the distance from A to B. 
D) 1/4 of the distance from A to B. 
E) 1/ times the distance from A to B.

Final answer:

The kinetic energy of a mass oscillating on a vertical spring is at a minimum when the object is at the extreme points of its motion. This is because the object has momentarily stopped moving, leading to zero kinetic energy. All the energy is instead stored as potential energy in the spring.

Explanation:

In the case of a mass oscillating on a vertical spring, the kinetic energy of the object is at a minimum when the object is at its extreme points, i.e., when it is at points 'a' or 'b'. This is because, at these positions, the object momentarily comes to rest before reversing its direction, thereby having a velocity (and hence kinetic energy), which is proportional to the square of the velocity, of zero. The energy at these points is mainly stored in the spring as potential energy.

At these extreme points, we have a situation where the potential energy (U) is maximum and the kinetic energy (K) is equal to zero. At the midpoint position x = 0, the entire energy is kinetic while the potential energy in the spring is zero, which suggests that the kinetic energy is minimum at the extreme positions.

This property of kinetic and potential energy fluctuating between each other is a common characteristic of simple harmonic motion.

Learn more about Kinetic Energy here:

brainly.com/question/32072191

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