The people who jump off high buildings probably don't even go anywhere nearly as fast as free fall divers since free fall skydivers optimise their body position and clothing to reduce air friction i . e . increase their terminal velocity.
42.
Because of the heat generated by air friction ( even in ultracentrifuges, where the rotor operates in a good vacuum ), and the frequent necessity of maintaining samples at a given temperature, many types of laboratory centrifuges are refrigerated and temperature regulated.
43.
This entails orbit, which is, at altitudes prevalently entered by such means, not a matter of altitude, but rather of velocity, which is not to say that we need not discuss air friction and relevant altitudes in relation to that and orbit.
44.
In other words, since there is more air friction occurring on the top surface of the ball compared to the bottom, this differential causes a greater pressure to be applied on the top of the ball, resulting in the ball being pushed " down ".
45.
The effects of air friction on the cannonball are ignored ( or perhaps the mountain is high enough that the cannon will be above the Earth's atmosphere, which comes to the same thing ) . Conic sections describe the possible orbits ( yellow ) of small objects around the Earth.
46.
Some analysts claim infra-red search and track systems ( IRSTs ) can be deployed against stealth aircraft, because any aircraft surface heats up due to air friction and with a two channel IRST is a CO2 ( 4.3 �m absorption maxima ) detection possible, through difference comparing between the low and high channel.
47.
This allowed the Blackbird to fly at over Mach 3, faster than any other production aircraft . The heating effect of air friction at these speeds meant that a special fuel had to be developed which did not break down in the heat and clog the fuel pipes on its way to the burner.
48.
Purely theoretical, but assuming an Olympic-regulation volleyball in a gym with a constant air temeprature of 20 degress Celsius and a barometric pressure equal of that at sea level, how much of an impact force or energy would a player need to hit the ball with in order to set the ball on fire from air friction?
