Question

what is difference between democratic government and non democratic government ?

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Answer 1

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what is the average velocity and displacement of a body moving in a horizontal circle with constant speed ?

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If an object is moving in a horizontal circle at constant speed, the centripetal force does not do work and cannot alter the total mechanical energy of the object. For this reason, the kinetic energy and therefore, the speed of the object will remain constant. 

Answer 2

Answer:

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what is the average velocity and displacement of a body moving in a horizontal circle with constant speed ?

\huge{\underline{\mathtt{\red{A}\pink{n}\green{s}\blue{w}\purple{e}\orange{r}\red{♡}\pink{~}}}}

If an object is moving in a horizontal circle at constant speed, the centripetal force does not do work and cannot alter the total mechanical energy of the object. For this reason, the kinetic energy and therefore, the speed of the object will remain constant.