![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
What happens when a rubber rod is rubbed with a piece of fur?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:20
In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy
Answers: 2
You know the right answer?
What stresses can you experience in nursing...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 22.09.2019 06:00
![question](/tpl/images/cats/istoriya.png)
History, 22.09.2019 06:00
![question](/tpl/images/cats/istoriya.png)
History, 22.09.2019 06:00
![question](/tpl/images/cats/mat.png)
Mathematics, 22.09.2019 06:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.09.2019 06:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.09.2019 06:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.09.2019 06:00
![question](/tpl/images/cats/mat.png)
Mathematics, 22.09.2019 06:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.09.2019 06:00
![question](/tpl/images/cats/en.png)
English, 22.09.2019 06:00
![question](/tpl/images/cats/biologiya.png)
Biology, 22.09.2019 06:00
![question](/tpl/images/cats/en.png)
English, 22.09.2019 06:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/health.png)
Health, 22.09.2019 06:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)