Consider two pieces of the same metal at thermal equilibrium; one with a larger mass and one with a smaller mass. If both pieces of metal are at the same temperature, which statement is true

The temperature will remain the same

Explanation:

The reason is that in thermal equilibrium the heat doesn't flow from one object to the other this means when these two metals come to incontact then according to thermal equilibrium the temperature of both of the metal pieces will remain same because the heat is not flowing from one piece to the other.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

your answer is c! hope this : )