Space Station RPM
First you need to find the tangential velocity of your space station.
X is a times sign
Equation: velocity = the square root of (9.80 m/s2 X 150m)
Then you need to use another equation to find the RPM.
Equation: RPM = velocity divided by 2 X pi (3.1415) X radius (150m)
RPM=v/2pi(r)
I got 0.498 RPM