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Q. Explain why does heated air expand?
Answer:-
Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance is the additional thermal energy it has. For the majority substances the statistical mechanics formula (3/2) kT works fine. In the previous formula k is the Boltzmann constant and T is the absolute temperature.
As thermal energy enlarge the molecules of a substance move faster. These molecules strike other molecules faster and harder and bounce away from collisions faster and harder. With no container to limit its shape a gas will merely expand. Were a container show the pressure of the gas in the container would increase.
#question.on which factor ionization and penetration depend ? how william cloud methode work to decet charge ?.
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It uses in electric cooling devices, turbines ...........etc
WHY WE USE DELAY LINE IN CRO WHAT HAPPENS IF WE NOT USE IT?
Echo: The sound heard after reflection from an obstacle is known as echo.
Natural and forced vibrations When we strike a tuning fork with a rubber hammer it vibrates with certain frequency. The frequency does not change even if we hit it harder.
A 42.0-kg skateboarder travelling at 1.50 m/s hits a wall and bounces off of it. If the magnitude of the impulse is 150.0 kg·m/s. Calculate the final velocity of the skateb
Draw a ray diagram to show the formation of image of an object placed among the optical centre and focus of the convex lens. Write the characteristics of image formed. Using this d
Figure shows the magnetic circuit of a relay. When each of the air gaps are 1.5mm wide find the mmf required to produce a flux density of 0.75 T in the air gaps. Use the B-
What is about Capacitor Capacitor: Two conducting surfaces divided by an insulating layer. It's a device capable of storing energy and charge. Capacitance= Charge on condu
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