The material that the snails are moving on affects their speed. On a smooth material, (petri dish) the snails moved the fastest. On a rough material (sandpaper) the snails moved the slowest. On dirt, a compromise between smooth and rough, the snails moved at a medium pace. The material and possibly friction affect this.
force is mass multiply by acceleration so it will be 150 multiply by 10 is 1500N
The best answer to go with is b
Larger stars have a higher amount of fuel in order to keep the process of nuclear fusion going.
