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3 years ago

What is the anion of the ionic compound NaC2H3O2 thank you!

Physics

1 answer:

KIM [24]3 years ago

6 0

C₂H₃O₂⁻ is an anion.

Explanation:

NaC₂H₃O₂(s) → Na⁺(aq) + C₂H₃O₂⁻(aq)

NaC₂H₃O₂ when dissociated, yields Na⁺ and C₂H₃O₂⁻.

Anion is a negatively charged ion.

In this case, C₂H₃O₂⁻ is an anion.

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Instrumento que se utiliza para medir fuerzas

Klio2033 [76]

Answer:

Un medidor de fuerza

A force gauge for all you English speakers

Explanation:

Un medidor de fuerza es un instrumento de medición que se utiliza para medir fuerzas.

A force gauge is a measuring instrument used to measure forces.

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3 years ago

Can someone make an introduction about the "flu shot " and the pro and cons of flu shots.The question is "the benefits outweigh

steposvetlana [31]

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2 years ago

Need help solving this question.

MatroZZZ [7]

Answer:

See the answers below.

Explanation:

to solve this problem we must make a free body diagram, with the forces acting on the metal rod.

The center of gravity of the rod is concentrated in half the distance, that is, from the end of the bar to the center there is 40 [cm]. This can be seen in the attached free body diagram.

We have only two equilibrium equations, a summation of forces on the Y-axis equal to zero, and a summation of moments on any point equal to zero.

For the summation of forces we will take the forces upwards as positive and the negative forces downwards.

ΣF = 0

$-15+T-W=0\\T-W=15$

Now we perform a sum of moments equal to zero around the point of attachment of the string with the metal bar. Let's take as a positive the moment of the force that rotates the metal bar counterclockwise.

ii) In the free body diagram we can see that the force acts at 18 [cm] of the string.

ΣM = 0

$(15*9) - (18*W) = 0\\135 = 18*W\\W = 7.5 [N]$

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2 years ago

Give 5 real life examples of a tension

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1.car towing

2.pulling bucket of water

3.gym equipment 

4.crane machine

5.tug of war

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1 year ago

How is a reference point defined?

nevsk [136]

Simply be used as a reference point to describe its position. a fact forming the basis of an evaluation or assessment; criterion. They had few cultural reference points in common.

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2 years ago