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2 years ago

11

A device that assures the delivery of electric power without interruption is a(n)?

1 answer:

mario62 [17]2 years ago

5 0

The answer should be UPS

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Which sphere of Earth do humans exist in?

PolarNik [594]

Biosphere is the answer, hope i helped :))

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2 years ago

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Write a description of this race using these words.

podryga [215]

Answer:

Race refers to physical differences that groups and cultures consider socially significant. For example, people might identify their race as Aboriginal, African American or Black, Asian, European American or White, Native American, Native Hawaiian or Pacific Islander, Māori, or some other race.

Explanation:

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2 years ago

A crowbar 2727 in. long is pivoted 66 in. from the end. What force must be applied at the long end in order to lift a 600600 lb

NikAS [45]

To solve this problem we will apply the concepts related to equilibrium, for this specific case, through the sum of torques.

$\sum \tau = F*d$

If the distance in which the 600lb are applied is 6in, we will have to add the unknown Force sum, at a distance of 27in - 6in will be equivalent to that required to move the object. So,

$F*(27-6)= 6*600$

$F = \frac{6*600}{21}$

$F= 171.42 lb$

So, Force that must be applied at the long end in order to lift a 600lb object to the short end is 171.42lb

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3 years ago

Asteroids do not travel in a straight line as they orbit the Sun. Per Newton's second law of motion, this implies

Morgarella [4.7K]

A force is acting on the planet

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2 years ago

Which row shows what happens to the temperature of a solid as it melts and what happens to the temperature when

frez [133]

When ice melts, its temperature doesn't change ... ice at 32 degrees becomes water at 32 degrees.

When water boils, its temperature doesn't change ... water at 212 degrees becomes steam at 212 degrees.

The row that says both of these is row-D .

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3 years ago