Answer:
Ep = 6300 [J]
Explanation:
If the ground level is taken as the reference energy point, that is, as the point at which the potential energy is equal to zero. We can calculate the energy potential maxima to the height where the weather vane is located.
The mass can be calculated as follows:
w = m*g
m = w /g
m = 140 / 9.81
m = 14.27[kg]
Now calculating the potential energy
Answer:
i think answer is c
Explanation:
as formation water from steam condensed release heat
else all need heat
Farenheit is the best to measure accurate temperature because, It can go into the negatives(-) and unlimited positives(+). Celcius(C) only goes from 0-100°C Stating that water freezes at 0°C and Boils at 100°C. Farenheit has unlimited temperatures because as time goes by we continue making new discoveries in science.
I Hope This Helps!!! :)