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At what distance must the cheetah relative to the antelope be when the chase begins if the cheetah catches the antelope in 15 seconds?
A motorist decreases the speed of an automobile at a constant rate from 45 to 30 mi/h over a distance of 750 ft along a curve of 1500-ft radius.
A Hot water stream at 80o C enters a mixing chamber with a mass flow of 0.5 Kg/s where it is mixed with a stream of cold water at 20o C. If it is desired that the mixture leave the chamber at 42oC,
Determine the difference between these values and the corresponding static values in the undisturbed atmosphere ahead of the airplane.
An adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the condenser level to the evaporator level.
Let To=70 F and Po=14.7 lbf/in^2. Find the exit temperature and the exergy destruction rate for an exit pressure of 500 lbf/in^2.
A regenerative gas turbine with single stage compression and double stage expansion is used to generate power. Air enters the compressor at 100 kPa and 300 K, with a mass flow rate of 0.562 kg/s and
Determine the availability per kilogram of the steam at the point where the steam enters the turbine and at both points at which steam leaves the turbine.
Find: a) cutting speed for minimum tool wear, b) machining time, and c) the total time and total cost per piece for both types of tools
Explain, from an atomic structure point of view, why metals can be plastically deformed to form large and complex shapes while complex ceramic parts cannot be manufactured by this technique.
Determine (a) the average force at the wheels of the cab, (b) the average force in the coupling between the cab and the trailer.
Suppose that the mass in a mass-spring-dashpot system with m=10, c=9 and k=2 is set in motion with x(0)=0 and x'(0)=5 (A) find the position function of x(t) and show its graph looks as indicated in
Assume that the flow is fully developed, steady and incompressible. The height between the two plate is 2h. Derive the relation between the pressure gradient (-dP/dx) and the wall shear stress T(tau
A mass suspended by a spring is subjected to a triangular force impulse. At the initiation of the impulse, the force is 200N and decreases linearly to zero in τ/4 seconds (where τ is the nat
Develop a mathematical model and use it to determine how fast you would have to ride your bike to make it from the roof of Clemens to the roof of the Lockwood library.
Assuming a ZND structure, determine the key properties for the detonation wave described in problem 1. ( propagating through an ideal-gas mixture having a constant specific heat, Cp, of 1200J/Kg-K.
Determine the velocity of a detonation wave propagating through an ideal-gas mixture having a constant specific heat, Cp, of 1200J/Kg-K. The mixture is initially at 2atm and 500K.
A projectile is launched from point A with initial speed v0 and makes an angle ?n with the horizontal. It hits the ground and bounces back. The coefficient of restitution for this impact.
A small orifice of diameter D with a smooth entrance (i.e., no losses) is open at the bottom. Develop a relationship for the time required for the tank to empty halfway.
Air is adiabatically compressed in a non flow process from a pressure of 14.7 psia and temperature of 70 degrees to 200 psia and 350 degrees f. if the Cv of the air is 0.171 Btu/Ibm degrees R, dete
Calculate the total equivalent length of 1-in wrought iron pipe that would produce a pressure drop of 70 kPa due to fluid friction, for a fluid flowing at a rate of .05 kg/s, a viscosity of 2cP, and
Estimate the amount of fuel needed to travel from Buffalo to Rochester if your brand new silver concept car has a drag coefficient of 0.25, a cross-sectional area of 6.1 ft2.
Heat is generated in a 1.4-m-long, 0.2-cm-diameter electrical wire that extends across a room which is maintained at 20ºC. The surface temperature of the wire is measured to be 240ºC in st
Find the Fourier Coefficient for a pulse wave with an amplitude of 30N, a duty cycle of 0.5 seconds and a period of T=2 sec. This wave is 30N from 0.0 to 0.5 seconds and 0 N from 0.5 to 2.0 seconds.