Estimate torque needed to overcome friction on blades
A three-blade helicopter blade rotates at 200 rpm. If each blade is 12 ft long and 1.5 ft wide, estimate the torque needed to overcome the friction on the blades if they act as flat plates. Assume the flow is laminar.
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With the piston face resting against the stops, the water cools to 25°C. Sketch the two processes in series on a P-v diagram.
A steam pipe is covered with 1.50 cm thick insulating material of thermal conductivity .2000 cal/cm degress C s. How much energy is lost every second when the steam is at 205 degrees C and the surrounding air is 15.0 degrees C.
The drag characteristics of an airplane are to be determined by model tests in a wind tunnel operated at an absolute pressure of 1300 kPa.
Successive maximum displacements of a spring-mass-dashpot system (shown by Fig. 19.10 of "Vector Mechanics for Engineers: Statics and Dynamics" 8th edition) are 1.25, 0.75, and 0.45in.
A three-blade helicopter blade rotates at 200 rpm. If each blade is 12 ft long and 1.5 ft wide, estimate the torque needed to overcome the friction on the blades if they act as flat plates.
Why is it desirable and advisable for the Jominy specimens to be held in the oven at the austenitic temperature for a prolonged time prior to quenching? What do we call this type of activity?
In order to do this, the astronaut's shuttle must escape the gravity of Earth by firing it's thrusters. What speed, vesc, must the astronaut's shuttle attain to escape the Earth?
Why or Why not and provide cathode-anode half reactions? How fast is the corrosion occurring? Do we have enough information to answer this question? If not, what additional information is needed?
A composite wasll is to be constructed of 1/4 inch stainless steel (k=10.5 but/hr-ft-degrees F), 3.0 inches of corkboard (k=0.027 same units), and 1/2 inch of plastic (k=1.4); What is the individual resistance of each material layer. Report in hr-
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult