Explanation:
string roller is called an example of wheel and axel because The thin rod which needs to be turned is called the axle and the wider object fixed to the axle, on which we apply force is called the wheel.
hence the we apply force on the roller and the string gets tight.
The right half will be a new bar magnet of 2cm with north pole on the right side and south pole on teh left.
Molecules Speed Up because the other three options only occur when the temperature is decreased.
B) colloid because i took the test and that the answer
