![subject](/tpl/images/cats/User.png)
Engineering, 02.12.2021 21:50 meme6229
The table below shows the cost of downloading songs from a website. \text{Number of Songs}Number of Songs \text{Total Cost}Total Cost 66 \$2.10$2.10 1010 \$3.50$3.50 1616 \$5.60$5.60 What is the constant of proportionality between the total cost and the number of songs?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 12:10
On a average work day more than work place firs are reorted
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 19:10
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
Answers: 2
You know the right answer?
The table below shows the cost of downloading songs from a website. \text{Number of Songs}Number of...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mir.png)
World Languages, 18.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 18.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01
![question](/tpl/images/cats/istoriya.png)
History, 18.10.2020 21:01
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01
![question](/tpl/images/cats/biologiya.png)
Biology, 18.10.2020 21:01
![question](/tpl/images/cats/en.png)
English, 18.10.2020 21:01
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.10.2020 21:01