Answer:Convection
Explanation:
Convection is the heat transfer procedure by the movement of liquid or gas molecules. It is a combination of diffusion and bulk motion of molecules. Near the surface of the liquid diffusion process dominates while at certain height bulk motion of liquid dominates.
Convection can be
Natural : Natural convection occurs due to density differences
Forced: Force convection occurs when we apply external heat source.
Answer:
part of input energy is wasted
it is used to increase the entropy of the surrounding
therefore the useful energy output is necessarily smaller than the energy input
in other words the efficiency of heat engine is always less than hundred percent
Answer:
Explanation:
Kinetic Energy is the energy a particle, body or object possesses due to its movement and is mathematically defined as:
Where:
is the mass of the body
is the velocity of the body
So, if we want to calculate the kinetic energy of an object, we have to use the equation given above.
Answer:
F_net = B -W
The forces of action and reaction are the weight of the balloon that is the force of attraction of the Earth and the outside so the balloon pulls the earth that has an upward direction and is applied to the planet
Explanation:
A hot air balloon is subjected to the force of its weight directed towards the center of the Earth. The thrust due to the cold air released, this thrust is directed upwards.
If we assume that the balloon rises at a constant speed
F_net = B -W
F_neta = ρ g V_body - ρ_body g V_body
The forces of action and reaction are the weight of the balloon that is the force of attraction of the Earth and the outside so the balloon pulls the earth that has an upward direction and is applied to the planet
The LC circuit will also need a capacitance of 1.01 μF.
<h3>
What is capacitance?</h3>
Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential.
<h3>Capacitance needed for the resonance circuit</h3>
Xl = Xc
where;
- Xl is the inductive reactance
Xl = ωL
Xc = 1/ωC
ωL = 1/ωC
ω²LC = 1
C = 1/(ω²L)
C = 1/(2πf)²(L)
C = 1/(4π²f² L)
C = 1/(4π² x 100² x 2.5)
C = 1.01 x 10⁻⁶ F
C = 1.01 μF
Thus, the LC circuit will also need a capacitance of 1.01 μF.
Learn more about capacitance here: brainly.com/question/13578522
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