Air Pressure & Density in Tires Problems? - how to measure tractor tires
I have some problems with these two questions in physics, is very grateful for any help!
1) The air pressure at the surface of the earth is about 100 kPa (psi) 14.5. If the meter was used to measure pressure in a tire and to read the meter of 200 kPa (29 psi), which is the absolute pressure in the tires?
2) The internal volume of a real tractor tire is 0.5 m ^ 3 (17.7 m ^ 3).
a) If the air temperature in the tires is 20 ° C (68 ° F) and pressure of 200 kPa (29 psi), is where the density of air in the tires?
b) How many kg (lb) of air in the tires?
Thursday, February 11, 2010
How To Measure Tractor Tires Air Pressure & Density In Tires Problems?
1 comment:
Determine 1) the absolute pressure (PSIA) on the tire, you simply add pressure gauge (psi) to atmospheric pressure (14.7 psi). I'll let you do the math. Meters are calibrated to take into account to 14.7 psi, expresses the mood down so that you now do not think every day.
2a), is the density, mass / volume. Search for the mass of air at 68 ยบ C per square inch (then multiply by 29), and divide by 17.7
2b), study the mass 2a) ==> on the earth, mass = weight.
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