Many people remember that 'heat rises'. This is true for which of these types of heat transfer?
a) Conduction,
b) Convection,
c) Radiation
d) None of the above - heat can not rise except briefly until gravity pulls it down again.
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Ответ:
Option B, convection
Explanation:
The term heat rises is usually associated with the convection. This is because the medium by which heat flows from one place to another is air or water.
Actually there is no rise in temperature or there is no rise in heat, the heat just gets distributed in all the directions which was previously just limited upto a single place.
In case of convection the warm air travels from one place to another and the people say that there is a rise in heat.
The other of heat transfer is conduction and radiation but is limited to solid objects and other is in the form of electromagnetic waves.
Ответ:
Newton's First Law, which states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force, can be applied here. We can conclude from the scene that Mr. Incredible, (Bob Parr) is a superhuman with extraordinary strength. He used his strength to solve 2 problems: 1) Save the elderly womans cat that was up in the tree, and 2) Stop the criminals by using the tree he had just uprooted to stop their car.
Explanation:
Hope this helped