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Agata [3.3K]
3 years ago
10

Electrical power is transmitted from power plants to consumers–sometimes over very long distances– through conducting power line

s that are either underground or suspended overhead on poles. in lab and tutorial, we generally treat wires as having essentially 0 resistance. however, over a sufficiently long distance, the resistance of a conducting wire becomes significant. why is this?
Physics
1 answer:
sergeinik [125]3 years ago
7 0
There is more wire to travel through,farther distance, and a higher possibility of other disruptions.  Please Mark Brainliest!!!
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In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220-m-long cannon with final speed of 10.
Sidana [21]

Answer:

The unrealistically large acceleration experienced by the space travelers during their launch is 2.7 x 10⁵ m/s².

How many times stronger than gravity is this force? 2.79 x 10⁴ g.

Explanation:

given information:

s = 220 m

final speed, vf = 10.97 km/s = 10970 m/s

g = 9.8 m/s²

he unrealistically large acceleration experienced by the space travelers during their launch

vf² = v₀²+2as, v₀ = 0

vf² = 2as

a =vf²/2s

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Compare your answer with the free-fall acceleration

a/g = 2.7 x 10⁵/9.8

a/g = 2.79 x 10⁴

a = 2.79 x 10⁴ g

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3 years ago
According to Newton’s first law of motion, what will an object in motion do when no external force acts on it?
KonstantinChe [14]

By definition, we have to:

Newton's first law states that any object will remain in a state of rest or with a uniform rectilinear motion unless an external force acts on it.

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Answer:

The object will remain with a uniform rectilinear movement when the external force does not act on it.

4 0
3 years ago
Read 2 more answers
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