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Bumek [7]
4 years ago
10

How does heat conduction work

Physics
2 answers:
steposvetlana [31]4 years ago
6 0
Heat conduction (or thermal conduction) is the movement of heat from one solid to another one that has different temperature when they are touching each other. For example, we can warm our hands by touching hot-water bottles. When the cold hands touch the hot-water bottle, heat flows from the hotter object (hot-water bottle) to the colder one (hand).

Other ways to transfer heat are by thermal radiation and/or convection. Usually more than one of these processes happen at the same time.
Musya8 [376]4 years ago
4 0
Heat energy can move through a substance by conduction. Metals are good conductors of heat, but non-metals and gases are usually poor conductors of heat. Poor conductors of heat are called insulators. Heat energy is conducted from the hot end of an object to the cold end.
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The atmospheric pressure in denver, co is 633 mmhg. what is this pressure in atm?
sineoko [7]
1 atm of pressure corresponds to 760 mmHg. Therefore, we can set a simple proportion to find how many atmospheres of pressure correspond to 633 mmHg, in the following way:
1 atm : 760 mmHg = x : 633 mmHg
And if we solve this proportion, we find the pressure in atmospheres:
x= \frac{1 atm \cdot 633 mmHg}{760 mmHg}=0.83 atm
7 0
3 years ago
A different group of students decided to do this experiment by
GaryK [48]

Answer:

Using an object of less mass can reduce the energy lost due to friction.

Explanation:

let the mass of the object be M.

acceleration due to gravity be g, coefficient of kinetic friction between object and slider be \alpha  , angle between horizntal and slider be ∅ and distance slided by the object be d.

work done by friction of the ramp will be the energy lost by ramp due to friction.

work done = force×displacement

force = \alpha×M×g×cos∅

displacement= d

therefore work done =  \alpha×M×g×cos∅×d

therefore on decreasing the mass M we can see that work done by friction decreases so the energy lost due to friction also decreases.

8 0
3 years ago
Two hockey players are about to collide on the ice, One player has a mass of
Furkat [3]

Answer:

19 kg x m/s East

Just did it!

3 0
3 years ago
A package rests on the floor of an elevator that is rising with constant speed. the elevator exerts an upward normal force on th
Tomtit [17]
Because the actual package isn't moving so the gravitational potential energy stays the same. kinetic energy is gained through motion of the object not the motion of the surroundings of the object so
unless the package is falling out of a window its losing gravitational potential energy and gaining kinetic energy. hope this helps :-) 
6 0
3 years ago
8. An airplane heading to Paris from Houston travels 5000 miles at 500 mph. How long will it take the airplane to get to Paris?
attashe74 [19]

Answer:

10 hours to get to Paris

4 0
3 years ago
Read 2 more answers
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