Describe how a convection cell is created in the mantle of the Earth.
2 answers:
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Answer:
Explanation:
Gravitational Potential Energy at earth surface
Gravitational Potential Energy at height h is
Energy required to lift the satellite
Now Energy required to orbit around the earth
(given)
(b)For greater height is greater than
thus energy to lift the satellite is more than orbiting around earth
Answer:
maximum possible velocity =
Explanation:
centripetal acceleration when the car is going in the circle must be less than the maximum friction for the car to not slip.
centripetal acceleration
where v is the velocity of car and r is the radius of circle
maximum friction = umg
where u is the coefficient of static friction.
therefore
therefore maximum possible velocity =
Kinetic energy and potential energy pair is the quantity in which one will increase then other will decrease
As we know that sum of kinetic energy and potential energy will always remain conserved
So here we will have
so here as we move away from mean position the kinetic energy will decrease while at the same time potential energy will increase.
So the pair of potential energy and kinetic energy will satisfy the above condition