Because dogs have their bodies covered with fur, sweating is less effective. Dogs have sweat glads in places where there is little fur. However this is not enough in some hot days. To keep the body temperature in order dogs have to rely on panting. The interior of mouth and lungs is wet, so breathing quickly speeds up cooling. It acts similarly to wind blowing on sweaty person's skin.
You can try it on your own. When you breathe heavily you will feel coolness :)
In order to evaporate (change state from liquid to gas) heat energy has to be delivered to water. The heat energy is taken from the body of dog, thus cooling it.
The heat equation is Q = mcT
Q is the total amount of heat transferred to or from something.
The first requirement is to
look at all the vital information’s given in the question. Based on those
information’s the answer to the question can be easily reached.
Distance that needs to be covered for the race = 38.4 kilometer
Time required to complete the race = 4.5 hours
Then
Average speed = Distance/Time
= 38.4/4.5 km/hour
= 8.53 km/hr
So the average speed would be 8.53 Km/hr.
I hope the answer to the
question is what you were looking for and the procedure is clear to you.
Answer:
1960 J
Explanation:
EK = (18 kg + 62 kg)/2 = 1960 J
The switches could be defective or worn out or the wires at the switch connections could be loose, causing arcing that is making the noises. There is probably nothing wrong with your basic wiring. ... The safest course is to replace any switch that is making unusual noises such as hissing, crackling and popping