Will give brainest to whoever's right! which of these statements is correct about a scientific law? a. it describes specific relationships which change over time. b. it describes specific relationships under given conditions. c. it offers an explanation of specific relationships under given conditions. d. it offers an explanation of specific relationships which change over time. i think it is b. but i'm not sure.

Need in all of themmm only answer if you know plsssss

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)

The material that keeps its new shape after it is stretched is called?