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need tips on starting f40 rapid start fluorescent lights in an area with high humidity?

Once the bulbs have started they work perfectly, but the only way to start them is continuously flick the wall switch til the bulbs light. Have replaced the bulbs and ballasts within the last week. Is there any way to add an old fashioned starter into the system?

Answer
Although you just replaced the ballast, my suggestion would be to refit/replace the fixture with f32 ballast and bulbs as f40 bulbs will no longer be available in the near future.

condition no oil film on cylinder walls of engine, result in rapid wear of piston rings and cylinders?

Answer
what year? what make? more info

in a circular ride where it spins at a rapid velocity in what direction does the net force act on a body in it

i have read it is actually to the centre of the ride, however, that does not make sense as a body in the ride experiences some force that pushes against the body and make it "stick" to the wall of the ride. Also, where does this force come from (what is the source of this?)

Answer
Towards the center is right. The circular ride is pushing on you -- pushing you towards the center of motion.

Which one of the following does NOT describe ideal gases?

a) the average kinetic energies of different kinds of gases are the same at a given temp.? b) under ordianry conditions of a temp ans pressure, gas molecules are widely separated. c) gas molecules move in rapid, random, straight-line paths until collisions occurs with other molecules or with the wall of the container. d) the volume occupied by the gas molecules themselves under ordinary conditions is large in comparison or with the total volume occupied by the gas. e) gases are "less ideal" near their liquefaction points.

Answer