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iragen [17]
2 years ago
8

¿a qué se refiere la frase ""el ciudadano es el eslabón clave en esta cadena de la sostenibilidad""?.

SAT
1 answer:
Brilliant_brown [7]2 years ago
6 0

Answer:

La opción correcta a la cual se refiere la frase "el ciudadano es el eslabón clave en esta cadena de la sostenibilidad" es:

A. La viabilidad de una ciudad depende de sus habitantes.

Explanation:

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Friction: a 50-kg box is resting on a horizontal floor. A force of 250 n directed at an angle of 30. 0° below the horizontal is
sergejj [24]

The net forces on the box parallel and perpendicular to the surface, respectively, are

∑ F[para] = (250 N) cos(-30.0°) - F[friction] = (50 kg) a

and

∑ F[perp] = F[normal] + (250 N) sin(-30.0°) - F[weight] = 0

where a is the acceleration of the box. (We ultimately don't care what this acceleration is, though.)

To decide whether the friction here is static or kinetic, consider that when the box is at rest, the net force perpendicular to the floor is

∑ F[perp] = F[normal] - F[weight] = 0

so that, while at rest,

F[normal] = (50 kg) g = 490 N

Then with µ[s] = 0.40, the maximum magnitude of static friction would be

F[s. friction] = 0.40 (490 N) = 196 N

so that the box will begin to slide if it's pushed by a force larger than this.

The horizontal component of our pushing force is

(250 N) cos(-30.0°) ≈ 217 N

so the box will move in our case, and we will have kinetic friction with µ[k] = 0.30.

Solve the ∑ F[perp] = 0 equation for F[normal] :

F[normal] + (250 N) sin(-30.0°) - F[weight] = 0

F[normal] - 125 N - 490 N = 0

F[normal] = 615 N

Then the kinetic friction felt by the box has magnitude

F[k. friction] = 0.30 (615 N) = 184.5 N ≈ 185 N

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2 years ago
HAND is to Giove as HEAD is to....​
Vladimir79 [104]
Helmet

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How many identification code are possible by using 3 letters if no letter may be repeated?
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Answer:

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Explanation:

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The amount of $700,000 is advisable to be deposited in three different banks for safety of Angelo's money.

<h3>What is a bank deposit?</h3>

A deposit of money made with a bank to earn returns in the form of interest on such money is known as a bank deposit. The banks insure such deposits up to a certain limit, say $250,000.

Angelo can distribute his money into three different banks, with each deposit not exceeding $250,000 to ensure the safety of his bank deposits.

Hence, the way to insure the safety of Angelo's money via bank deposit is aforementioned.

Learn more about bank deposit here:

brainly.com/question/2507231

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