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Verdich [7]
3 years ago
7

Convection occurs when thermal energy is transferred by the movement of _______

Physics
2 answers:
masya89 [10]3 years ago
8 0

Answer:

Convection occurs when thermal energy is transferred by the movement of fluids.

Explanation:

Convection is one of the three forms of heat transfer (conduction, convection and radiation) that transports heat between zones with different temperatures. Convection itself is the transport of heat through the movement of fluid. For example, when heating water in a saucepan, the water in contact with the base of the pan rises, while the water from the surface descends and occupies the place left by the hot one.

mina [271]3 years ago
5 0

Answer:

Convection occurs when thermal energy is transferred by the movement of fluid particles.

Explanation:

Transfer of heat energy by the movement of fluid particles is called convection. Convection takes place in liquids and gases due to kinetic energy. When heat is provided to liquids and gases they expand and move faster.

Molecules with higher kinetic energy become less dense and rise up to the surface of liquid, whereas molecules with lower energy move towards the bottom. This up and down movement of molecules causes convection currents in fluids.

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What does deposition mean in a sedimentary formation
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3 years ago
Some expressways are curved, banked and designed to maximize ___________ at higher speeds.
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Safety

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For work to be done on an object,
djverab [1.8K]

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3 years ago
A hiker begins a trip by first walking 25.0 km southeast from her car. She stops and sets up her tent for the night. On the seco
Sunny_sXe [5.5K]

Answer:

(a)

x_1=17.68km\\y_1=-17.68km\\x_2=20km\\y_2=34.64km

(b) r=41.32km

\alpha =24.23^o

Explanation:

Let us take the north direction to be the positive y-axis and the east to be positive x-axis.

First day:

25.0 km southeast, which implies 45^o south of east. The y-component will be negative and the x-component will be positive.

x_1=25cos45^o=17.68km

y_1=-25sin45^o=-17.68km

Second day:

She starts off at the stopping point of last day. This time, both the y- and x-components are positive.

x_2=40cos60^o=20km

y_2=40sin60^o=34.64km

Therefore, total displacements:

x=x_1+x_2=(17.68+20)km=37.68km

y=y_1+y_2=(-17.68+34.64)km=16.96km

Magnitude of displacements,

r=\sqrt{x^2+y^2}=41.32km

Direction,

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6 0
3 years ago
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