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scZoUnD [109]
3 years ago
15

if heat energy is transferred from direct contact between a warm and a cold object it has been transferred by what ?

Physics
1 answer:
Katarina [22]3 years ago
5 0

When heat energy is transferred from direct contact between a warm and a cold object , it is known as heat transfer by conduction.

In conduction, the heat transfer takes place within an object or between two objects in contact until the temperature becomes uniform. this kind of heat transfer continues until the temperature at two ends between which the heat transfer take place , becomes equal.  Heat transfer takes place from point at high temperature to point at lower temperature.

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what is the kinetic energy of an object that has mass of 30 kilograms and move with a velocity of 20 m/s
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3 years ago
SI is considered a consistent system because it what
NemiM [27]

Answer:

because it is a worldwide system....

Explanation:

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2 years ago
a 10 kilogram steel ball is dropped from the top of a tower 100 meters high the kinetic energy of the ball just before it sttike
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Explanation:

If we assume negligible air resistance and heat loss, we can assume that all of the Gravitational potential energy of the ball will turn into Kinetic energy as it falls toward the ground.

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4 0
3 years ago
Which of the following is a chemical change?
klemol [59]

a). Water is still H₂O after it freezes.

b). Ice is still H₂O after it melts.

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3 0
3 years ago
One watt is A. equal to one kilogram per second B. the power that can be delivered by an average horse C. the same as one-foot p
Naddik [55]

Answer:

D. the proper replacement unit for one joule per second

Explanation:

When energy is divided by the time the energy was used we get power

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So, the answer is D. the proper replacement unit for one joule per second

8 0
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