Why might the study of matter and energy be important

Physics

1 answer:

Aleksandr [31]2 years ago

3 0

Answer:

The flow of matter and energy in the ecosystems is important so that the exchange necessary for them to work. In order for ecosystems to exist, there must be energy flowing and making possible the transformation of matter. Ecosystems are complex systems that exchange matter and energy with the environment and, as a result, modify it.

Explanation:

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A square is cut out of a copper sheet. Two straight scratches on the surface of the square intersect forming an angle theta. The

GarryVolchara [31]

Answer:

<em>a) increases</em>

Explanation:

Almost all substance or material undergoes expansion due to heating. Heat gives thermal energy to the molecules of a substance increasing their body temperature. The temperature of a substance is the measure of the average kinetic energy of the molecules of that substance. When the temperature of a substance increases, the molecules begin to agitate and try to move far from each other, leading to either a linear, area, or cubic expansion, or all three of them. Metals like copper expand very well on heating, and their expansion is relatively minute, but very observable. When the face of such a copper is scratched to give and angle, heating the copper uniformly will cause the copper to expand, leading to an increase in the angle formed.

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3 years ago

The combination of all forces that act on an object are (2 points)

qaws [65]

Answer:

A) The net force

Explanation:

If two forces of equal strength act on an object in opposite directions, the forces will cancel, resulting in a net force of zero and no movement.

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3 years ago

Which phrase does not describe a mineral?

Jobisdone [24]