0-18, an isotope of oxygen, has a stable nucleus. 0-19, another isotope of oxygen, does not have a stable nucleus. Based on
this information, which statement is correct?
O
O
O
O
0-19 is radioactive; 0-18 is not radioactive.
0-19 has a mass defect; 0-18 does not have a mass defect.
0-19 has a nuclear binding energy; 0-18 does not have a nuclear binding energy.
0-19 has more neutrons than protons; 0-18 has equal numbers of neutrons and protons.

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!

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