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
iris [78.8K]
3 years ago
15

Algunas fabricas de balones de fútbol ubicadas en la costa inflan los balones que van a ser vendiéndose las ciudades como pasto,

tunja o bogota por debajo de su capacidad normal y cuando los balones llegan a los estudiantes, se encuentran firmes. ¿por que sucede esto? Por favor necesito su ayuda doy hartos puntos es para hoy esta tarea por fa
Physics
1 answer:
otez555 [7]3 years ago
8 0

Answer:

balloon is rigid the amount of gas is constant inside the interior pressure of the balloon is constant and in these cities it becomes equal to or slightly higher than atmospheric pressure

Explanation:

Este ejercicio es referente a la mecánica de fluidos, usemos la expresión para la presión  

       P = ρ g h

En es el caso del balón  usemos la presión en la pared extrema, llamemos P la presión por el gas en el interior y P_ext la presión atmosférica del lugar

        cuando se llena el valor en una ciudad de baja altura la presión atmosférica es mas alta

          P_int1 < P_ext1

por lo cual la pared del balón no se mantiene rígida.

Cuando el balón es trasladado a una ciudad con mayor altura sobre el nivel del mar la presión exterior disminuye

       P_ext2 = ρ g h₂ < P_ext1

en promedio la presión disminuye con la altura  en 0,029 atm cada 250 m

por lo tanto como la cantidad de gas es constante en el interior la presión interior del globo es constante y en esta ciudades se hace igual o un poco mayor que la presión atmosférica, en consecuencia la pared del globo esta rígida

        P_int2 >P_ext2

Traslate

This exercise is related to fluid mechanics, let's use the expression for pressure

       P = ρ g h

In the case of the balloon, let's use the pressure on the extreme wall, let's call P the pressure for the gas inside and P_ext the atmospheric pressure of the place

        when the value is filled in a low-lying city the atmospheric pressure is higher

          P_int1 <P_ext1

therefore the wall of the ball does not remain rigid.

When the ball is transferred to a city with higher altitude above sea level, the external pressure decreases

       P_ext2 = ρ g h <P_ext1

on average the pressure decreases with height by 0.029 atm every 250 m

therefore as balloon is rigid the amount of gas is constant inside the interior pressure of the balloon is constant and in these cities it becomes equal to or slightly higher than atmospheric pressure, therefore the wall of the

        Pint 2> Pe

You might be interested in
You weigh 680 N.
Alchen [17]

Answer:

132.22 N

Explanation:

Weight at the surface of a planet is:

W = GMm / r²

where G is the gravitational constant,

M is the mass of the planet,

m is the mass of the object,

and r is the radius of the planet.

On Earth:

680 N = GMm / r²

If Earth's mass and radius were changed:

W = G (7M) m / (6r)²

W = 7/36 GMm / r²

W = 7/36 (680 N)

W = 132.22 N

4 0
3 years ago
A 570 kg elevator accelerates downwards at 1.5 m/s2 for the first 13 m of its motion.
jeka94
  • Mass of the elevator (m) = 570 Kg
  • Acceleration = 1.5 m/s^2
  • Distance (s) = 13 m
  • Let the force be F.
  • We know, F = ma,
  • Therefore, F = (570 × 1.5) N = 855 N
  • Angle between distance and force (θ) = 0°
  • We know, work done = F s Cos θ
  • Therefore, work done by the cable during this part
  • = (855 × 13 × Cos 0°) J
  • = (855 × 13 × 1) J
  • = 11115 J

<u>Answer</u><u>:</u>

<u>1</u><u>1</u><u>1</u><u>1</u><u>5</u><u> </u><u>J</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

6 0
3 years ago
A motor with an input power of 100 Watts is connected to a flywheel . How long in units of hours must the motor operate to trans
Tatiana [17]
Power is the rate of work done given by dividing work done by time.Efficiency is the ratio of work output to work input
power input= 100 watts
power output = x
efficiency= 0.8 
thus 0.8 = x/100, therefore x = 80
power is given by energy times time
hence time = 80/300000 = 0.00026 seconds 
Time in hours = 0.00026/360 = 7.407 x 10 ∧7 hours
8 0
4 years ago
The fact that desert sand is very hot in the day and very cold at night is evidence that sand has
insens350 [35]

Answer:

A) a low specific heat.

Explanation:

As we know that heat given to the sand will increase it temperature

so we can say

Q = ms\Delta T

here we will have

\Delta T = \frac{Q}{ms}

so now we will have

more change in temperature due to heat given to the sand will show that it must have low specific heat capacity as it inversely depends on the specific heat capacity of the sand

so correct answer will be

A) a low specific heat.

5 0
3 years ago
Read 2 more answers
The diagram below shows four coastline locations on Earth with respect to the moon at a given time.
enyata [817]

4)Both B and D.This happens becaus3 at the ceryain time, A experiences a flood tide causing the waters to come near it.And since B and D are the closest coastlines they are affected the most.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the value of δs when 64.0 g of ga(l) solidifies at 29.8 ∘c.
    7·1 answer
  • During a race, four competitors of the same weight rode identical bicycles for 10 minutes. Which bicycle stopped for a short dri
    7·2 answers
  • Describe the conditions necessary for sublimation to occur.
    15·2 answers
  • Lloyd is a computer technician who his company sends to customers' homes to fix their broken computers. He usually fixes between
    9·1 answer
  • if a car that is 100 feet in front of you on route 70 west slams on the brakes while you are traveling 65 miles per hour (95 fee
    12·1 answer
  • When electrons in an atom in an excited state fall to lower energy levels, energy is?
    10·1 answer
  • A cyclist rode at an average speed of 10 mph for 15 miles. how long what the ride?
    12·1 answer
  • A person is standing 110m below the top of cliff B, and thetwo
    15·1 answer
  • An upward force of 18 N is applied via a string to lift a ball with a mass of 1.5 kg.
    6·1 answer
  • For the following substances: air, water and iron. order of speed of sound waves from low to high
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!