1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksanka [162]
2 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]2 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

You might be interested in
If this element loses
Lorico [155]

Answer:

KEDal

Explanation:

7 0
3 years ago
Looking at the following equation, what coefficient should be placed in front of the H2? Fe + H2SO4 --&gt; Fe2(SO4)3 + H2
Hatshy [7]

Answer:

3 (three)

Explanation:

2 Fe + 3H2SO4 = Fe2(SO4)3 + 3 H2 (basically just balance both sides)

6 0
3 years ago
An oxide ion, O2–, has:
sergij07 [2.7K]

Answer:

the answer A- 8 protons and 10 electrons

6 0
2 years ago
Read 2 more answers
Dolomite is a mixed carbonate of calcium and magnesium that decomposes to CO2 and the metal oxides MgO and CaO upon heating. Whe
kirill [66]

Answer:

47%

Explanation:

MgCO₃ (s) → MgO (s) + CO₂ (g)

CaCO₃ (s) → CaO (s) + CO₂ (g)

_______________________

MgCO₃ (s) + CaCO₃ (s) → MgO (s) + CaO (s) + 2CO₂ (g)

MgO: 40.3044 g/mol

MgCO₃: 84.3139 g/mol

CaO:56.0774 g/mol

CaCO₃: 100.0869 g/mol

CO₂: 44.01 g/mol

15.42 g is the total mass of dolomite.

7.85 g is the sum of MgO and CaO produced.

This means that 7.57 g of CO₂ were produced.

44.01 g CO₂_____ 1 mol

7.57 g CO₂ _____  x

x = 0.172 mol CO₂

Considering the global reaction, we had 0.172/2 = 0.086 mol of MgCO₃ in the original sample.

1 mol MgCO₃ _______ 84.3139 g

0.086 mol MgCO₃ ___ y

y = 7.25 g

15.42 g dolomite ______ 100%

7.25 g MgCO₃ ________ z

z = 47%

7 0
3 years ago
Which elements are;<br><br>a)solids, <br>b)liquids<br>c)gases <br><br>at 25°C​
Luda [366]
C. I am pretty sure don’t get mad if it’s wrong
6 0
2 years ago
Other questions:
  • A gamma ray primarily consists of pure energy and no mass. True False
    8·1 answer
  • How many neutrons does an element have if its atomic number is 45 and its mass number is 160?
    13·1 answer
  • Gravity is a force of attraction between two or more masses. The gravitational attraction between the Sun and each of the planet
    12·1 answer
  • Preteins vary widely in structure, whereas nucleic acids have rather uniform structures. How do you account for this major diffe
    9·1 answer
  • A compound formed from titanium and oxygen has the formula TiO2. Which of the following is true about the ratio of number Ti and
    13·1 answer
  • In which pair do the particles have approximately the same mass?
    6·1 answer
  • The matter in this series of images is going through a change. Draw a conclusion about the type of change shown. Is it a physica
    8·1 answer
  • At a certain temperature the vapor pressure of pure benzene is measured to be . Suppose a solution is prepared by mixing of benz
    12·1 answer
  • Many people in the world don't have access to clean drinking water. What may be the cause of this?
    9·2 answers
  • Atoms and the chemical bonds that connect them cannot be observed with your eyes, so it is necessary to use a
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!