![subject](/tpl/images/cats/fizika.png)
Physics, 31.07.2019 18:10 ferrin6507
Aheat pump has a coefficient of performance that is 60% of the carnot heat pump coefficient of performance. the heat pump is used to heat a home to 24.0°c during the winter with the low temperature reservoir at the outdoor temperature. at which outdoor temperature would it be more efficient to add the energy directly to the interior of the home than use it to run the heat pump?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 17:00
Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 03:30
When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
Answers: 1
![question](/tpl/images/cats/fizika.png)
You know the right answer?
Aheat pump has a coefficient of performance that is 60% of the carnot heat pump coefficient of perfo...
Questions
![question](/tpl/images/cats/en.png)
English, 06.01.2021 07:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/istoriya.png)
History, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/himiya.png)
Chemistry, 06.01.2021 07:20
![question](/tpl/images/cats/himiya.png)
Chemistry, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/mat.png)
Mathematics, 06.01.2021 07:20
![question](/tpl/images/cats/en.png)
English, 06.01.2021 07:20