For 5 minutes, the temperature of 20 liters of water was warmed from 20 ℃ to 60 ℃. And the gas consumption for 5 minutes was 0.093 m3. How much is the thermal efficiency of this hot water heater? However, conversion to Joule from a calorie is 1cal=4.18605J. And a calorific value of city gas of Tokyo is 45 MJ/m3. Can someone help me ?
Good job, but I think there's an error with the last calculation. I think the family's savings on home heating should be $30 as against the $28.8 you got. I may be wrong though.
"Highschool is so hard"
Also Highschool:
Ok😅....in the 3rd example the efficiency of engine isn't 29%... it's 28%....even a smallest digit matters most when it's with % sign
For 5 minutes, the temperature of 20 liters of water was warmed from 20 ℃ to 60 ℃. And the gas consumption for 5 minutes was 0.093 m3. How much is the thermal efficiency of this hot water heater? However, conversion to Joule from a calorie is 1cal=4.18605J. And a calorific value of city gas of Tokyo is 45 MJ/m3.
Can someone help me ?
Thx really helped me for me physics test, I’m grade 9.02 in ATHS Ajman, its currently 20 April 2022
wait what physics is this? 2?
Good job, but I think there's an error with the last calculation.
I think the family's savings on home heating should be $30 as against the $28.8 you got. I may be wrong though.
Character In the video It's great, I like it a lot $$
Best treatment of energy efficiency based numerical.
Very good and funny videos bring a great sense of entertainment!
Your content is so touching
Thank you
thanks
Thx
Good job 🌹
thanks
the sound is not good I am quite disappointed