Measure a whole stack (one in which you know the number of sheets), then divide your measurement by the number of sheets in that stack
Answer:
Explanation:
Given
initially mass is stretched to 
Let k be the spring Constant of spring
Therefore Total Mechanical Energy is 
Position at which kinetic Energy is equal to Elastic Potential Energy


it is given

thus 



Answer: momentum has the same direction as that of velocity but when 2 bodies with the same linear momentum & different velocities it has different masses because a vector quantity is represented by a cross product of mass and velocity of object .
Answer:
The objects kinetic energy increases as it falls from some height.
Possible Solutions to the Problem of Global Energy Crisis:
1. Move Towards Renewable Resources.
2. Buy Energy-Efficient Products.