![subject](/tpl/images/cats/fizika.png)
(UFLA-95)Uma barra de ferro homogênea é aquecida de 10ºC até 60ºC. Sabendo-se
que a barra a 10ºC tem um comprimento igual a 5 m e que o coeficiente da dilatação
linear do ferro é igual 1,2 x 10-6
ºC-1
, podemos afirmar que a variação de dilatação
ocorrida e o comprimento final da barra foram de:
a)5×10-4m; 5,0005m
b)2×10-4m; 5,0002m
c)4×10-4m; 5,0004m
d)3×10-4m; 5,0003m
e)6×10-4m; 5,0006m
Ajuda aí
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:30
What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:20
Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
Answers: 3
You know the right answer?
(UFLA-95)Uma barra de ferro homogênea é aquecida de 10ºC até 60ºC. Sabendo-se
que a barra a 10ºC t...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2020 14:31
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.01.2020 14:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.01.2020 14:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 27.01.2020 14:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 27.01.2020 14:31
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 27.01.2020 14:31
![question](/tpl/images/cats/geografiya.png)
Geography, 27.01.2020 14:31
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
Health, 27.01.2020 14:31
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.01.2020 14:31