Supernova explosions are known to release a large amount of energy. a detector for which type of electromagnetic radiation is most suitable to study a supernova explosion? gamma ray infrared radio wave visible light

Gamma Ray

Supernova explosion is an event which occurs in the final stage of a star's life. Its a huge explosion and immensely bright which oushines a galaxy. The light from the supernova explosion cab be seen from billion of light years away. A supernova explosion releases gamma rays. Gamma rays are high frequency electromagnetic waves which carry large amount of energy. hence, a detector of gamma ray can be used to study a supernova explosion.

the force on the thing and the distance the force moves the thing

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.