Rachel has three different samples of rare Earth metals. The first sample has a mass of 5.5. 10-grams, the second has a mass of 1.4 grams, and the third has a mass of 4.4 . 10-2 grams. Ignoring significant figures, what is the sum of these three masses?
11.3.10-59
1.449510-09
1.44959
11.39

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 think the answer is tomato juice? not entirely sure though

i believe the answer is electric potential.

explanation: