It's not illegal, but never have them on while driving unless you need to warn drivers behind you of a hazard or you're carrying something like for example: On freeways there are some semis and regular trucks who are hauling something/s and need to warn people that it's hazardous or to be careful when passing
19) answer is Fnet = 0N as the forces cancel out.
20) forces are balanced bc there is no acceleration
21) zero resultant
Please don’t mind the other things(writings) Hope this is helpful please mark me as brainlist please please
Answer:
I'm not completely sure, but try the Premack principle one. If that's not it, I'm sorry.
Explanation:
