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an airplane on a carrier is designed so that the speed of the air below the wing is the air speed, v, of the plane, and the speed above the wing is 30% bigger. The plane weighs 5000 kg. Air has a density of 1.2 kg/m^3 at sea level. The take off speed of the plane is 60 m/s. What is the total wing area of the plane?
q1. a krypton laser produces the cylindrical red laser beam 2.0mm in diameter with 2.0w of power. what is the light
For the polarizers in the figure, suppose the incident light is linearly polarized, What is the angle (in degrees) the initial direction of polarization makes with the first polarizer
How long must a 0.70-mm-diameter aluminum wire be to have a 0.48A current when connected to the terminals, What is the current if the wire is half this length
A copper-bottomed kettle, its bottom 24 cm in diameter and 3.0 mm thick, sits on a burner. What is the temperature of the bottom surface of the kettle
Please show how you got the answer, thanks! At the top of a hill with slope angle 32o a snow sled is moving at 4 m/s. how fast will the sled be traveling at the bottom
If two adjacentnatural frequencies of an organ pipe are determined to be 475 Hzand 575 Hz calculate the frequency and length of the pipe
Demonstrate that gravitational energy is not extensive: show that the gravitational energy of a sphere of radius 'r' and uniform density varies with volume V^n and find the exponent 'n'.
Two parallel, vertical, plane mirrors, 31.9 cm apart, face each other. A light source at point P is 29.8 cm from the mirror on the left and 2.1 cm from the mirror on the right. Find the number of reflections of light rays for each of these images
a block on a frictionless horizontal surface is attached to a spring (k=30 N/m). the mass is displaced to the right of equilibrium and released from rest. calculate amplitude of oscillations
A force F = ( 2 i + 2 j ) N acts on a particle that undergoes a displacement ?r = (-6 i - j ) m. Find the work done by the force on the particle
When 3825 J of heat are added to a 0.14-m-long silver bar, its length increases by 4.59 10-3 m. What is the mass of the bar
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. find the distance (in m) between the cliffs
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