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
umka21 [38]
3 years ago
15

En un recipiente de cobre de forma rectangular de aproximadamente 3.5 m largo por 4.5m ancho tiene una temperatura en temporada

de invierno 4 ° C . Calcular su superficie cuando este en verano a una temperatura 40 ° C . ( Cobre 16.6 x 10 ( -6 )
Physics
1 answer:
Darina [25.2K]3 years ago
3 0

Answer:

A_f= 15,769 m²

Explanation:

Este es un ejercicio de dilatación térmica,  

          ΔA = (2α) A₀ ΔT

el arrea de recipiente

          A₀ = L A

          A₀ = 3,5 4,5

          A₀=  15,75 m²

el coeficiente de dilatación térmica es alfa = 16,6 10⁻⁶ C⁻¹

calculemos

            ΔA = 2 16,6 10⁻⁶  15,75 ( 40 -4)

            ΔA = 522,9 (36)  10⁻⁶  

            A= 1,88 10⁻²  m2

el cambio de volumen es

          ΔA = A_f – A₀

          A_f = A₀ +  ΔA

          A_f=  15,75 +1,88 10⁻²  

          A_f= 15,769 m²

You might be interested in
When does it have kinetic energy
NeTakaya
The answer is motion
5 0
2 years ago
Explain how geothermal energy and tidal energy can be used effectively?
Vadim26 [7]
  • Geothermal energy can heat, cool, and generate electricity: Geothermal energy can be used in different ways depending on the resource and technology chosen—heating and cooling buildings through geothermal heat pumps, generating electricity through geothermal power plants, and heating structures through direct-use applications.

  • Tidal can be harnessed in three different ways; tidal streams, barrages, and lagoons.
3 0
2 years ago
Read 2 more answers
3
Hunter-Best [27]
The answer to your equation is c
4 0
3 years ago
Un cuerpo gira con movimiento circular uniforme un ángulo total de 1080° en 20
LekaFEV [45]

Velocidad angular = (angulo total) / (tiempo total)

Velocidad angular = (1080 grados) / (20 segundos)

Velocidad angular = (1080/20) g/s

Velocidad angular = 54 g/s

Pero 180 grados = π radianes

V.A. = (54 g/s) x (π rad / 180 g)

V.A. = (54π gr-rad / 180 seg-gr)

<em>V.A. = 0.3π rad/seg</em>

V.A. = aproximadamente  0.942 rad/seg

7 0
3 years ago
A 5.0 kg book is lying on a 0.25 meter high table.
Wittaler [7]

Answer:

Below in the picture:-

I hope it helps.

3 0
3 years ago
Other questions:
  • Consider a concave mirror with a focal length of 12.60 cm. a) Find the image distance when the object distance is 12.60 cm. (Ans
    12·1 answer
  • Can someone help with these questions (1 , 3 , 4)
    7·1 answer
  • A bowling ball collides with a pin, knocking it over. The ball continues to move
    6·1 answer
  • A bar extends perpendicularly from a vertical wall. The length of the bar is 2 m, and its mass is 10 kg. The free end of the rod
    5·1 answer
  • Multiple Response: Newton's second law (select 3)
    15·2 answers
  • Water flows from one reservoir to another a height, 41 m below. A turbine (η=0.77) generates power from this flow. 1 m3/s passes
    5·1 answer
  • Mass number of 43 and 21 electrons what is this atom
    13·1 answer
  • What is cerebellum ?<br>​
    15·1 answer
  • PLZZ IF ANYONE KNOWS SCIENCE HELP ME PLZ I this is so confusing :(
    12·2 answers
  • A string is being pulled with a force of 20 N and moves a 5 kg block to the left at a constant speed. What is the coefficient of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!