To secure it onto the tracks when in motion, to prevent it from slipping off the tracks when rounding a curve, and to make it slow down and stop in an emergency.
Height of the tallest hill, I guess is the answer. There could be some other factors in the shape of the course like twists or spirals which would have some angular effect on the speed, as well.
10
Important factors in decreasing Kinetic Energy are Gravity and 'drag' from Friction.
The crime rate of the neighborhood is one important factor that should be looked at to find a safe apartment building. The environment and buildings around the apartment are also a factor to finding a safe apartment.
Friction Interaction is a push or pull factor of your object rubbing against the ground.
Gravity is good. It keeps the cars down on the track, and the fans in their seats. Friction is bad. If there was no friction, then you could cut your engine when you hit 200 and just keep going. But friction robs your kinetic energy, so if you back off your engine, then your car slows down.
Yes. Friction is always a factor. It is partly through drag, which can be thought of as friction, that the wind in a tornado is able to cause damage.
That the cable trays are sufficient.
limiting friction is force of friction when a body slides over the surface of another body
Igloos don't work in the tropics.
Being able to get children to trust you, otherwise, with no trust, you cannot build cooperation with them.
Nutrition is an important factor in bodybuilding. However it is less important than actual weight training. A good high protein diet is helpful in building muscle mass.