Answer:
The amount of time needed for this heating to occur is 126.25 min
Explanation:
Given;
power required to heat the room = 2kW
volume of the room = 5 m X 5 m X 6 m = 150 m³
atmospheric pressure at sea level = 101 Kpa
Internal energy available in this room, E = PV
= 101 Kpa*150m³
= 15,150 Kpa.m³ = 15,150 KJ
P*t = E
where;
t is the time required to heat this room
1 kW = 3600 kJ/h
2 kW = 7200 kJ/h
![t = \frac{E}{P} = \frac{15150 KJ}{7200\frac{KJ}{h}} =2.104 {hours} = 126.25 min](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7BE%7D%7BP%7D%20%3D%20%5Cfrac%7B15150%20KJ%7D%7B7200%5Cfrac%7BKJ%7D%7Bh%7D%7D%20%3D2.104%20%20%7Bhours%7D%20%3D%20126.25%20min)
Therefore, the amount of time needed for this heating to occur is 126.25 min
Answer:
gets higher
Explanation:
There are videos that show the range of human hearing. If you would play the video, you would notice that if the frequency increases, the pitch would also increase.
Answer:
Nuclear binding energy is the energy required to split a nucleus of an atom into its component parts: protons and neutrons, or, collectively, the nucleons. The binding energy of nuclei is always a positive number, since all nuclei require net energy to separate them into individual protons and neutrons.
I hope you find this helpful.