Answer: Heat
Explanation:
when there is enough air in the balloon that is when the crew would blast the burner into the envelope mouth building the pressure until the balloon inflates until it starts to lift off the ground and as the air builds up the balloon will lift right off the ground
The efficiency : 95%
<h3>Further explanation</h3>
Efficiency : the ratio between output and input work
In general, the value of the output of a machine is less than the value of the input because of the frictional force in the machine.
The greater the efficiency of the engine, the better the machine
Can be formulated :

w output = 190 J
W input = 200 J
The efficiency :

The correct definition of density is the degree of compactness of a substance.
True?
Step by step explanation:
Not sure if this is what you wanted.
Answer:
Explanation: Carbon and silicon BOTH come from Group 14 of the Periodic Table , i.e. both formally have the same number of valence electrons, 4 such electrons.........