The city is thinking about starting a program to add a new chemical to the public pool. before they do, they want to find out if there are any health risks associated with this type of chemical. which group would be the best to advise them on this topic?

a group of concerned citizens who oppose the program
the company that manufactures the chemical
the local pest pool companies who would be hired to take care of the pool
the government agency that regulates these types of chemicals

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.

so easy. just google the electromagnetic waves and it’ll pop up.