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IrinaVladis [17]
3 years ago
13

calcular el trabajo que realiza la fuerza horizontal f de 30N al mover un bloque y se cambia de posición de 30m​

SAT
1 answer:
swat323 years ago
4 0
Can you show me a picture of your work, puedes enseñar me una photo de tu trabajo... luego luego ti ayudo :)
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Un camión traslada 12 vehículos. Algunos son autos y otros son camionetas. Cada auto tiene una masa de 2 toneladas y cada camion
bagirrra123 [75]

Encontrando y resolviendo un sistema de ecuaciones, veremos que hay 9 camionetas y 3 autos.

Sabemos que hay 12 vehículos en el camión.

Definamos:

  • a = número de autos
  • c = número de camionetas.

tal que a + c = 12

La masa total será:

a*2 ton + c*3 ton

Y sabemos que el camión lleva 33 toneladas, entonces tenemos:

a*2 ton + c*3 ton = 33 ton

Así encontramos el sistema de ecuaciones:

a + c = 12

a*2 ton + c*3 ton = 33 ton

Para resolverlo, primero aislamos una de las variables en una de las ecuaciones, aislemos a en la primera:

a = 12 - c

Ahora reemplazamos esto en la otra:

(12 - c)*2 ton + c*3 ton = 33 ton

24 ton + c*1 ton = 33 ton

c*1 ton = 9 ton.

c = 9

Es decir, hay 9 camionetas.

Entonces los 3 vehículos restantes son autos.

Hay 9 camionetas y 3 autos.

Sí quieres aprender más, puedes leer:

brainly.com/question/17174746

6 0
3 years ago
Which conclusion best explains the narrator's inability
Masja [62]

Answer:

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2 years ago
Which number is equivalent to 5×10+4×1+8×110+6×1100+1×11,000
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Explanation:

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4 0
3 years ago
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A sample of a compound that contains only the elements c, h, and n is completely burned in o2 to produce 44. 0 g of co2, 45. 0 g
Elan Coil [88]

Answer:

B. CH₅N

Explanation:

The combustion reaction of a compound CₐHₓNₙ with O₂ is:

CₐHₓNₙ + O₂ → a CO₂ + X/2 H₂O + n NO₂

Where 1 mole of CₐHₓNₙ with an excess of O₂ produce a moles of CO₂, X/2 moles of H₂O and n moles of NO₂

Thus, you need to convert the mass of CO₂ and H₂O to moles to find the C:H ratio and determine a possible empirical formula thus:

Moles CO₂ (Molar mass 44g/mol):

44g ₓ (1mol / 44g) = 1 mole CO₂ = 1 mole C

Mole of H₂O (Molar mass 18g/mol):

45g ₓ (1 mol / 18g) = 2.5 moles H₂O = 5 moles H

Thus, in the compound you have 5 moles of H per mole of C, and a possible empirical formula is:

B. CH₅N

The only structure that meet this C:H ratio

8 0
3 years ago
Susan is a high-school administrator. She is required to make a presentation about school hygiene issues and the actions expecte
lilavasa [31]

Answer: 1, 3, 2, 4. The first thing she did in the question is the first she should do when preparing. The second thing she did should be the third. The third thing she did should be the second thing she does. The fourth should be the last.

Explanation: When making a presentation, first one should choose a topic, then research it and write the presentation, then practice, then give it.

4 0
3 years ago
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