![subject](/tpl/images/cats/fizika.png)
Physics, 09.09.2021 15:50 isabellapayton2
Why do we add alcohol/ethanol to the leaf once it is boiled?
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 15:30
Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? (a)gamma rays (b)visible light (c)infrared light (d)microwaves
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:00
Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:30
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 00:40
Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*
Answers: 1
You know the right answer?
Why do we add alcohol/ethanol to the leaf once it is boiled?...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 21.04.2021 20:20
![question](/tpl/images/cats/biologiya.png)
Biology, 21.04.2021 20:20