Which of the following sequences correctly lists the different arrivals from first to last? A. P waves ... S waves Surface waves
B. Surface waves ... P waves S waves
C. P waves ... Surface waves ... S waves
D. S waves ... P waves Surface waves

C,

Explanation:

I'm not sure because I'm not familiar with this topic ,,,make your own answer if I am wrong.

it becomes positively charged by charging it

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.