What is kinetics?...

What is kinetics?

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Kinetics is a branch of dynamics which deals with motion of bodies along with studying the cause for their motion.

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What is the kinetic energy of an object?

The blades of a windmill sweep out a circle of area A. If the wind flows at a velocity v perpendicular to the circle, What is the kinetic energy of the air?

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The blades of a windmill sweep out a circle of area 30m^(2) . If the wind flows at a velocity 10ms^(-1) at right angles to the circle, what is the mass of the air passing through it in time t? What is the kinetic energy of the air? If the density of air is 1.2 kgm^(-3) , then calculate the electric power produced if the windmill converts 25% of wind energy into electrical energy.

Consider the D–T reaction (deuterium–tritium fusion) ""_(1)^(2)H + ""_(1)^(3)H to ""_(2)^(4)He + n (a) Calculate the energy released in MeV in this reaction from the data: m (""_(1)^(2)H) = 2.014102u m(""_1^(3)H) = 3.016049 u (b) Consider the radius of both deuterium and tritium to be pproximately 2.0 fm. What is the kinetic energy needed to overcome the coulomb repulsion between the two nuclei? To what temperature must the gas be heated to initiate the reaction? (Hint: Kinetic energy required for one fusion event =average thermal kinetic energy available with the interacting particles = 2(3kT/2), k = Boltzman’s constant, T = absolute temperature.)

A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?

SUBHASH PUBLICATION-MOTION IN A STRAIGHT LINE-NUMERICALS WITH SOLUTIONS

What is kinetics?
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