8. two solid cylindrical specimens a and b, made of a perfectly plastic material, are being forged with friction and isothermally at room temperature to a reduction in height of 50%. specimen a has a height of 50 mm and a cross-sectional area of 6.25×10-4m2 and specimen b has a height of 25 mm and a cross-sectional area of 0.0025 m2. will the work done be the same for the two specimens? explain.

heat the gas and measure the pressure

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.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray