It makes calculations with very large and small numbers easier.
Scientific notation is a system used in order to It makes calculations with very large and small numbers easier. It is useful as it allows very large number that would take a lot of space to write otherwise, and it allows them to be calculated easier. 
for example is a incredible large number, but written in this form is immediately understandable and useful for calculation.
Energy Produced by water and heatfrom the inner core of the earth of the earth
I believe that would be 1,080,000,000 Kilometers per hour- lmk if that helps
Answer:
Explanation:
The equation for acceleration is
where vf is the final velocity and v0 is the initial velocity. For us, the final velocity is 25 m/s and the initial is 0 because the train started from resting position. Filling in and solving for a:
so
a = .83 m/s/s
imagine something setting stil, such as a box, since it is not moving, it has static friction
