Four objects are situated along the y axis as follows: a 1.99-kg object is at 2.99 m, a 2.96-kg object is at 2.57 m, a 2.43-kg object is at the origin, and a 3.96-kg object is at -0.502 m. Where is the center of mass of these objects

The center of mass for the object is   from the origin

Explanation:

From the question we are told that

   The mass of the first object is  

   The position of first object with respect to origin

   The mass of the second object is  

   The position of second object with respect to origin

   The mass of the third object is  

   The position of third object with respect to origin

   The mass of the fourth object is  

   The position of fourth object with respect to origin

Generally the center of mass of the object along the x-axis is  zero  because all the mass lie on the y axis

Generally the location of the center mass of the object is mathematically represented as

=>

=>

no sign of dia of fuel cell

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this