Hello again!
I'm not sure if this is difficult but I believe that everyone have experienced this... I can't explain it... =) Sorry about that.
Anyway, here's my problem...
At noon, when the sand in the beach is already hot, why does the water still feel cold? Early in the night...
Some of the problems, I really don't know how to even set up the problem. I don't want an answer for them, but I need an idea where to start.
1. Gauge pressure in both tires = 690 kPa.
Bike and the riders mass = 90.0 kg.
Find area of contact of each tire with the ground if each tire...