a medium-sized jet has a 3.8m diameter fuselage and a loaded mass of 85,000kg. the drag on an airplane is primarily due to the cylindrical fuselage, and aerodynamic shaping gives it a drag coefficient of 0.37. how much thrust must the jet's engines provide so that the plane flies at a constant 280m/s at an altitude where the density of air is 1.0 kg/m3?

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What must students do with the 10 gird-ins on the math section of the psat

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.