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An airplane has a mass of 1.40 104 kg, and each wing has an area of 33.0 m2. During level flight, the pressure on the lower wing surface is 7.50 104 Pa.
(a) Suppose the lift on the airplane were due to a pressure difference alone. Determine the pressure on the upper wing surface.
the lowest pressure attained in a "vacuum" in a laboratory on the earth is 1X10^-17 atm at a termperature of 4.1 K. what is the number of molecules per cubic centimeter in this vacuum
In a science fiction novel, a starship takes three days to travel between two distant space stations according to its own clocks. How fast did the starship travel, relative to the space station
What is this force in Newtons.
A skier traveling 11.2 m/s reaches the foot of a steady upward 15.8° incline and glides 10.9 m up along this slope before coming to rest
What is the resulting compressional force on Earth. Two loudspeakers, A and B, are driven by the same amplifier and emit sinusoidal waves in phase.
Elements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, this is troublesome since the body treats calcium, calculate the path radius of the Ca ion
Astronauts walking on the Moon are seen "bounding" rather than walking normally. Why?
A tree falls on a bicycle path 40 m ahead of a cyclist traveling at 16 m/s, how far from the fallen tree will she be when she stops
A 800 kg car is travelling forwards at + 25 m s?1 along a level road. What is the acceleration during skidding
What should the charge (sign and magnitude) of a particle of mass 1.42g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N.
Estimate the acceleration of cyclist, and roller coaster.
Thus, to eliminate the difficulties with motion sickness, designers must choose the distance between the astronaut's feet and the axis about which the space station rotates to be greater than a certain least value. What is this least value.
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