A charged particle is accelerated in a uniform electric field.  When its velocity is 2 m/s, its electric potential energy is 100 J and its kinetic energy is 10 J.  What is the particle's potential energy when its velocity reaches 4 m/s?A.25 JB.70 JC.90 JD.135 J

A positively charged particle (charge q, mass m) is moving with constant velocity (of magnitude v0) in a region of space. In that region, a uniform electric field (of strength E) is applied for some time such that particle deviates by 60∘ and is moving twice as fast. The time for which the field acts is xmv0qE. Find the value of x2.

Ek = 1/2mv^2  A car with a mass of 1000 kg is traveling at a speed of 20 m/s. What is its kinetic energy?*1 pointA) 1000 JB) 20,000 JC) 100,000JD) 200,000 J

A ball with a mass of 0.2 kg is thrown vertically upward with an initial velocity of 10 m/s. What is its kinetic energy when it reaches its maximum height?*2 pointsa) 0 Jb) 10 Jc) 20 Jd) 40 J

A particle of mass ‘m’ and charge ‘q’ is released from rest is a uniform electric field, the kinetic energy attained by the particle after moving a distance x is

A single conservative force acts on a 1-gram particle that moves along  x -axis. The potential energy of the particle varies with  x  as  U  =  20 + (x − 2)2 , here  U  in erg and  x  in  cm . When the particle is at  x  =  5cm , its kinetic energy is  20erg . Then which of the following(s) is/are correct?