![subject](/tpl/images/cats/fizika.png)
Physics, 06.05.2020 08:33 sadmomsclub
When water flows through river rapids or over a waterfall, it experiences a decrease in height and thus a decrease in gravitational potential energy. Some of this energy goes into producing noise and eroding rock, but much of the energy goes into heating the water. A river flows over a waterfall of height h = 49 m. Assume all the available gravitational energy is converted into internal energy of the water. There is no change in the kinetic energy, because the flow speed of the river is the same above and below the waterfall.
Enter an expression for the change in temperature of the water, in terms of the height of the waterfall. I the specific heat of water, c, and the acceleration due to gravity.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 11:30
Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?
Answers: 3
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
You know the right answer?
When water flows through river rapids or over a waterfall, it experiences a decrease in height and t...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.07.2019 09:00
![question](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 09:00