For example, an internal combustion engine converts<span> the </span>potential<span> chemical </span>energy <span>in gasoline and oxygen into </span>thermal energy<span> which, by causing pressure and performing work on the pistons, is </span>transformed<span> into the mechanical </span>energy<span> that accelerates the vehicle (increasing its kinetic </span>energy<span>).</span><span />
Answer:
563.86 N
Explanation:
We know the buoyant force F = weight of air displaced by the balloon.
F = ρgV where ρ = density of air = 1.29 kg/m³, g = acceleration due to gravity = 9.8 m/s² and V = volume of balloon = 4πr/3 (since it is a sphere) where r = radius of balloon = 2.20 m
So, F = ρgV = ρg4πr³/3
substituting the values of the variables into the equation, we have
F = 1.29 kg/m³ × 9.8 m/s² × 4π × (2.20 m)³/3
= 1691.58 N/3
= 563.86 N
<em>the devices which are used to change the resistance in a circuit are called
<u>resisitors...
</u>the fact that they effect the voltage or not simply depends upon the type of resistor used in the circuit ...:)
</em>
A good diet. and exersise is the answer
Answer:
it he answer is a trachea
