Alai is comparing the physical property of two materials. he is hitting each with a hammer to observe what happens. what physical property of the materials is alai most likely observing? solubility conductivity hardness odor

Alai is most likely observing the hardness of the materials.

Explanation: Hardness is defined as the property of a material to resist a change in its structure when applied to a external force.

Hard materials will not change their shape when they are hit with a hammer whereas soft materials will  change their shape when they are hit with a hammer.

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.

i believe the answer is a hope it and is correct