I think its 13...........
The static frictional force is greater than the kinetic frictional force, so the static frictional force is greater than 1200 N.
The FREQUENCY of light remains unchanged once it leaves the source.
Answer:
1020 km
Explanation:
A complete rotation of the wheel equals a distance of 1 circumference.
The circumference is

where <em>d</em> is the diameter of the wheel.
300,000 rotations = 
In kilometers, this is = 1017876/1000 km = 1020 km
Answer:
it's because some versions have more steps and others have less