![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/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 06:00
Explain earth's motion, using the terms "precession" and "rotation" in your answer.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 06:30
Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 23:00
Aspaceship is designed to support animal life for a multiyear voyage to the outer planets of the solar system. plants will be grown to provide oxygen and to recycle carbon dioxide. since the spaceship will be too far from the sun for photosynthesis, an artificial light source will be needed. 13) what wavelengths of light should be used to maximize plant growth with a minimum of energy expenditure? a) full-spectrum white light b) green light c) a mixture of blue and red light d) uv light
Answers: 1
You know the right answer?
You're riding on a train that's moving at 5 km/h and you roll a ball down the aisle at 2 km/h in the...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.12.2021 02:00
![question](/tpl/images/cats/istoriya.png)
History, 09.12.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.12.2021 02:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/health.png)
Health, 09.12.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2021 02:00