2 years ago

Calcula la resistencia de un conductor de cobre de 2 m de longitud y 0,1 m2 de sección. Resistividad del Cu = 1,7 · 10–8 Ω · m

1 answer:

5 0

Answer:

an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

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alukav5142 [94]

Answer:

Heat

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Energy that is transferred from a warmer object to a cooler object is called heat.

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3 years ago

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Hans Full is pulling on a rope to drag his backpack to school across the ice. He pulls upwards and rightwards with a force of 22

natka813 [3]

Answer:

2420 J

Explanation:

From the question given above, the following data were obtained:

Force (F) = 22.9 N

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The work done can be obtained by using the following formula:

Wd = Fd × Cos θ

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Thus, the workdone is 2420 J.

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3 years ago

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Heat and/or energy are transferred from one object to another if the objects have _________ temperature(s).

NISA [10]

Answer:

.....different temperatures

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heat is a form of energy that is transfered from a body of high temperature to a body of low temperature....Cannot happen if the two bodies have the same temperature(thermal equilibrium)

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3 years ago