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The aircraft carrier is moving at a constant speed and launches a jet plane with a mass of 3 Mg in a distance of 75 m along the deck by means of a steam-driven catapult. If the plane leaves the deck with a velocity of 240 km/h relative to the carrier and if the jet thrust is constant at 22 kN during takeoff, compute the constant force P exerted by the catapult on the airplane during the 75-m travel of the launch carriage.
The probability that a new car battery functions for over 10,000 miles is .8, the probability that it functions for over 20,000 miles is .4, and the probability that it functions over 30,000 miles is .1. If a new battery is still working after 10,..
A water treatment plant treats a continuous flow rate of 50,000 m^3/day and plans to build a 10,000 m^3 tank to house an additional treatment process. The reaction occurring in the tank will remove nitrate according to first order decay with a rate o..
Design a cord (design the constants k and ) so the cord stretches 2.5 times the unstretched length, and the acceleration of the jumper doesn't exceed 3g, and the cord has zero stiffness at the bottom of a 400ft drop.
A trapezoidal channel with a bottom width of 4 feet and side slopes 2:1 (H:V) and a bed slope of 1 percent conveys a discharge of 50,000 gpm. Assume n = 0.025. Compute the normal depth
The posItIon of a particle along a straight line is given by s = (t 3 - 9t 2 + 1St) ft, where t is in seconds. Determine its maximum acceleration and maximum velocity during the time interval 0 :5: t :5: 10 s.
The rotor shafte of a helicopter drives the rotor blades that provide the lifting force and is subjected to a combination of torsion and axial loading. it is known that normal stress is 68 MPa and shear stress is -100 MPa.
Determine the magnitude and direction of the force P in so that the resultant of P and the 900N force is a vertical force of 2700N directed downward using.
One milligram per liter of hypochlorous acid (HOCl) is added to water to achieve disinfection of pathogenic bacteria. The disinfection potential of HOCl is 10 times greater than that of hypochlorite (OCl-).
In dating using radiocarbon, the amount of C^14 remaining at the time of measurement is expresed as a percentage of modern carbon. For example that the 30% modern carbon
A pond is used to treat a dilute municipal waste-water before the liquid is discharged into a river. The inflow to the pond has a flow rate of Q = 4,000 m3/day and a BOD concentration of Cin = 25 mg/L.
This causes the student to begin to rotate. Find the student's final angular velocity. The moments of inertia of the wheel and of the student are 0.313 kg · m2 and 2.09 kg · m2 respectively.
Choose two of the five Respiratory Hazards. Provide a brief explanation of each hazard and describe a situation in which you may encounter them. What effects would each of these hazards have on your body
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