The AISI (American Iron and Steel Institute) and SAE (Society of Automotive Engineers) have an assignment system that uses a four- or five-digit number to identify steel alloys. The first two digits refer to the major alloying elements present. The last two or three digits refer to the .
a. percent of iron present in the material
b. forming temperature of the material
c. density of the material
d. percent of carbon present in the material

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)