![subject](/tpl/images/cats/mat.png)
Mathematics, 26.02.2021 04:40 Sshadøw
2.- En el interior de una recámara se mantiene a una temperatura de ( 25°C), y su
exterior a (-3 °C). Calcula la cantidad de calor que se transmite del interior de la
recámara hacia el exterior a través del vidrio de una ventana de 3.20m de ancho
por 2.8m de altura y 12mm de espesor, durante un medio día.
Datos e incógnitas:
Fórmula:
Q= Atl(T2-T1)
1 = m
Q= AtX(T2-T1) L
D = m
r=m
+ T2-T1
MAL = 5.7 X 10-2 Kcalm seg °C
t=
6.16
A = Área de la sección transversal = área de un círculo
A=nr2 = (3.1416)
Sustitución
Q = (x10-m2)(18000seg)(5.7x10-2 Kcalm s °c)(°C)
m
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:30
In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:30
A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
What is the rate of change of a line that passes through (2,-5) and (6,-2)?
Answers: 2
![question](/tpl/images/cats/mat.png)
You know the right answer?
2.- En el interior de una recámara se mantiene a una temperatura de ( 25°C), y su
exterior a (-3 °C...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2020 23:31
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2020 23:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2020 23:31
![question](/tpl/images/cats/himiya.png)
Chemistry, 19.01.2020 23:31
![question](/tpl/images/cats/biologiya.png)
Biology, 19.01.2020 23:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 19.01.2020 23:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 19.01.2020 23:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.01.2020 23:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 19.01.2020 23:31