Fuel Efficiency (Energy Science, Engineering and Technology)Fuel efficiency is a form of thermal efficiency, meaning the efficiency of a process that converts chemical potential energy contained in a carrier fu... Read More >
A park ranger’s john-boat can make an average of 27 mph in still water. The ranger sets out for a trip upstream, but runs out of gas. He can row at the rate of 3 mph in still water. The ranger rows back to his starting point and discovers that the round trip lasted 6 hours. If the current was flowing at 2 mph, how far upstream did the ranger go before running out of gas?
my street flooded and so did my car……i was able to drive it out fine but then it shut off. my car is an 2003 honda accord coupe, the water only came up to under the door. took it to the mechanic they had to change the fluid pump, the spark plugs and coaxel or some crap like that they gave me the car back because they were taking forever to fix the car so i had to yell at them to fix it b/c they had it for almost two weeks. anyways the mechanic drove it to my house my dad paid them and i tried test drivin and the car start to jerk when i try to drive fast like its gonna shut off but it dont when i drive slow its fine the check engine light is on he told me about it he said the computer he had to reset it but they are going to have their car electrician look at it this sunday to fix the wires in teh car but i am worried about the jerking of my car thats is so frustrationg this is like a brand new car nothing is wrong with it until now all this crap is happening.. they changed the spark plugs drained all the water out change the fuel pump what else could be wrong.. with the car…..?? is it my engine i was reading up online they said my transmission fuel might be low i dont know but if i cant get it back to normal i will sue them for not fixing my car>>>>> HELP WHAT DO YOU THINK MIGHT BE WRONG??????
We recently replaced our headgasket on our jeep. It ran fine for two days and now we have the white smoke and its misting/ not wanting to idle and tires to shut off. The oil is milky looking again and we were freaking out thinking the gasket blown again.
My dad told us that its because you have to clean out where the oil goes, that we have to do a couple oil changes.
He says to drain the oil ,put some diesal gas in where the oil goes, empty it again, change the filter and put new oil in and keep repeating until there is no longer water in the oil.
hovercraft are in existence being used by the military and for recreation. they are cheaper to build and buy, can be designed for one person or large as a bus. uses less gasoline than an automobile. no worry of potholes or hydroplaning or hitting small animals. you wont need to buy a car and a boat when a hovercraft will go straight from the street to the water. we are in the space age and still tethered to wheeled vehicles. let’s fly!
hovercraft and speed laws can be modified. i’ve seen the military craft flying down the gulf over 70mph.
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