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
barxatty [35]
3 years ago
15

Un niño de 9 años se encuentra balanceándose en un columpio, si el columpio se encuentra en equilibrio y la cadena que soporta l

a canastilla donde se sienta el niño tiene un peso de 15Kg y este se encuentra a 42°con respecto a la perpendicular. Determine la tensión de la cadena y la fuerza con la que es empujado si el niño pesa 35Kg.
Chemistry
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

Part A

La tensión en la cadena es de aproximadamente 364,14 Newtons

Part B

La fuerza con la que se empuja el columpio es de aproximadamente 327,874 Newtons

Explanation:

Parte A

Los parámetros dados son;

La masa del asiento en el que se sienta el niño = 15 kg

La inclinación de la cadena de la vertical, θ = 42 °

La masa del niño = 35 kg

La aceleración debida a la gravedad, g = 9,8 m / s²

La tensión en la cuerda, 'T', se da de la siguiente manera;

T = m · g · cos (θ)

Dónde;

m = m₁ + m₂ = 15 kg + 35 kg = 50 kg

g = La aceleración debida a la gravedad = 9,8 m / s²

θ = 42 °

Por lo tanto;

T = 50 kg × 9,8 m / s² × cos (42 °) ≈ 364,14 N

La tensión en la cadena, T ≈ 364.14 N

Parte B

La fuerza con la que se empuja el columpio, 'F', se da de la siguiente manera;

F = m · g · sin (θ)

Por lo tanto;

F ≈ 50 kg × 9,8 m / s² × sen (42 °) ≈ 327,874 N

La fuerza con la que se empuja el columpio, F ≈ 327,874 N.

You might be interested in
Samuel adds a teaspoon of salt to a glass of water. He notices that the song disappears. Samuel takes a sip to discover that the
Brilliant_brown [7]

Answer:

It is a physical change.

Explanation:

While it is a chemical reaction because the salt gets dissolved, if you were to   boil the water off of a salt solution, all that would be left is salt. This can be done physically. Thus, it is a physical change.

8 0
3 years ago
NiSe2 + Ca3(PO4)2 = Ni3(PO4)2 + CaSe<br><br> balance please
Aliun [14]
3Ni + Sn3(PO4)2 → Ni3(PO4)2 + 3Sn I think. Not for sure though
8 0
2 years ago
How many liters of hydrogen gas are formed from the complete reaction of 1.03 mol of C? Assume that the hydrogen gas is collecte
aliina [53]

Answer:

27 liters of hydrogen gas will be formed

Explanation:

Step 1: Data given

Number of moles C = 1.03 moles

Pressure H2 = 1.0 atm

Temperature = 319 K

Step 2: The balanced equation

C +H20 → CO + H2

Step 3: Calculate moles H2

For 1 mol C we need 1 mol H2O to produce 1 mol CO an 1 mol H2

For 1.03 moles C we'll have 1.03 moles H2

Step 4: Calculate volume H2

p*V = n*R*T

⇒with p = the pressure of the H2 gas = 1.0 atm

⇒with V = the volume of H2 gas = TO BE DETERMINED

⇒with n = the number of moles H2 gas = 1.03 moles

⇒with R = the gas constant = 0.08206 L*Atm/mol*K

⇒with T = the temperature = 319 K

V = (n*R*T)/p

V = (1.03 * 0.08206 *319) / 1

V = 27 L

27 liters of hydrogen gas will be formed

8 0
3 years ago
Describe how visible spectroscopy could be used to determine the order of a reaction in which a single colorless reactant produc
d1i1m1o1n [39]

Answer:

Explanation:

In a reaction, where, one of the reactant produces a colored product, visible spectroscopy can be used to determined the order of a reaction, the change in concentration of the reactant which forms the colored product is determined by absorbance measurement over time. The data for the concentration and time are plotted on the y and x axis and If we get a straight line it is a zero-order reaction. If instead, a plot of ln[concentration] versus time gives a straight line, it is a first order reaction. However, If 1/concentration versus time gives a straight line, it is a second order reaction kinetics. The other reactants may be changed while keeping this reactant as constant and change on rate of the reaction is observed to see If the other reactant affects the reaction or not.

8 0
4 years ago
When the white part is on the left the moon is.??​
Kazeer [188]

Answer:

Last Quarter also called Third Quarter.

Explanation:

6 0
3 years ago
Other questions:
  • Please help Physical Science! Pretty easy.
    14·1 answer
  • Draw the organic and inorganic products for the following acid/base reaction as well as the charges.
    7·1 answer
  • Aqueous hydrochloric acid HCl reacts with solid sodium hydroxide NaOH to produce aqueous sodium chloride NaCl and liquid water H
    10·1 answer
  • How do I proceed to do this? I’m very confused.
    7·1 answer
  • Desalination is the process of converting sea water into drinking water. Older processes used a desalination method to desalinat
    11·2 answers
  • 2. If you have an unknown quantity of gas at a pressure of 1.2atm, a volume of 31 L, and a
    6·1 answer
  • Ge(NO2)2 whats the name of this formula?
    8·1 answer
  • Which section of the ocean floor is near the coastline of all continents?
    12·1 answer
  • According to this chemical equation which molecules represeny the products 4fe+3O-&gt;2fe2O3 A iron B iron and oxygen C iron oxi
    15·1 answer
  • Will give brainliest!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!