Mr. Palmer's dog is running at you at a a speed of 3.8 m/s. She has a KE of 231.04 J. How massive is Mr. Palmer's dog? answer

32kg

Explanation:

Given parameters:

Speed of the dog  = 3.8m/s

Kinetic energy  = 231.04J

Unknown:

Mass of Mr.Plamer's dog = ?

Solution:

Kinetic energy is the energy due to the motion of a body;

Mathematically, it is represented as;

      K.E  = m v²

  m is the mass

  v is the velocity

Insert the parameters and solve;

        231.04  =  x m x 3.8²

        231.04 x 2  = 2 x    x m x 3.8²

           462.08  = 14.44m

               m  = 32kg

pecialized keyboards

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach