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Oksanka [162]
3 years ago
15

Los hermanos Ana Victoria y José Leonardo están patinando en el hielo, con 25 y 20 kg respectivamente de masa, si Victoria empuj

a a Leo y este sale despedido con una aceleración de 2 m/s²
calcula la aceleración con que retrocede la niña, suponiendo que los patines no ofrecen resistencia al movimiento ​
Chemistry
1 answer:
andreyandreev [35.5K]3 years ago
3 0

Utiliando las leyes de Newton encontraremos que la aceleración de Ana es -1.6 m/s^2.

La segunda ley de Newton dice que:

F = m*a

Fuerza es igual a masa por aceleración.

La tercera ley de Newton dice que cuando dos objetos interactuan, cadan objeto ejerce una fuerza de <u>igual magnitud pero opuesta direccion</u> en el otro.

Ahora veamos como aplicar esto.

Sabemos que la niña empuja al niño, asumamos que con una fuerza F.

Tendremos entonces la ecuación:

F = 20kg*(2m/s^2) = 40N

Y por la tercer ley de Newton, esta misma fuerza (pero en opuesta dirección) se aplica a la niña, entonces tendremos:

-40N = 25kg*a

-40N/25kg = a = -1.6 m/s²

La aceleración con la que retrosede la niña es -1.6 m/s²

Sí quieres aprender más, puedes leer:

brainly.com/question/17123407

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Titration is a type of experiment that can be performed to investigate a neutralization reaction. The equivalence point is when
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The volume of the potassium hydroxide solution was 164.1 mL

Explanation:

In the equivalence point of a titration between an acid an a base, the moles of H⁺ are equal to the moles of OH⁻.

In the case of potassium hydroxide (KOH) and hydrochloric acid (HCl), an equation that represents the equivalence point would be:

V_{KOH}*M_{KOH}=  V_{HCl}*M_{HCl}

Using that equation and the data given in the problem, we can calculate the volume of potassium hydroxide:

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What was transferred from the hydrochloric acid to the water molecule
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A proton (H⁺) is transferred from the hydrochloric acid to the water molecule.

<h3>What is Bronsted-Lowry theory?</h3>

Bronsted-Lowry theory is used to classify acids and bases.

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  • Base: is a substance that accepts H⁺.

Hydrochloric acid is an acid and when it reacts with water, it transfers an H⁺ ion, according to the following equation.

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A proton (H⁺) is transferred from the hydrochloric acid to the water molecule.

Learn more about Bronsted-Lowry theory here: brainly.com/question/4083753

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