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A gear system having velocity ratio of 4 is connected by spur gears and has a 5-inch in center distance. The diametral pitch P is to be 6 T/in and the pressure angle is 20 degrees
a) Find the pitch radii and the number of teeth in the pinion and gear
b) Find the contact ratio
c) Determine if there will be interference
a car is to be hoisted by elevator to the fourth floor of a parking garage which is 48 ft above the ground. if the
A 15cm cube of mass 3kg is lubricated with SAE 10 oil at 20oC (dynamic viscosity of 0.104Ns/m2) slides down a 10o inclined plane at a constant velocity. Estimate the speed of the body if the oil film has a thickness of 2mm and the velocity distrib..
Write a MATLAB program that takes an input of the stress state in 3D. The program should Create the stress tensor. Calculate the principal normal and shear stresses by solving the Eigen value problem.
An air heater may be fabricated by coiling Nichrome wire and passing air in cross flow over the wire. Consider a heater fabricated from wire of diameter D=1 mm, L= 2m, electrical resistivity rho=10^-6 ohms, thermal conductivity k=25W/mK, and emiss..
A heat pump with a coefficient of performance of 3.8 provides energy at an average rate of 75,000 kJ/h to maintain a building at 21oC on a day when the outside temperature is 0oC. If electricity costs 8 cents per kW. h. Determine the electric power r..
The temperature and heat flux are plotted assuming radial symmetry, that is, even though the sensors are on both sides of the center line, they are plotted from one side only. Discuss whether or not you feel this is a good assumption. If so, are ther..
during this process heat is exchanged with surrounding such that the entire air remains at 30 degree celsius at all times.determine the heat transfer for this process.
a large plate contains a central crack of length 2 mm and is subjected to a cyclic stress normal to the crack which
consider steady heat transfer through a 5m x 6m brick wall of a house of thickness 30 cm. on a day when the temperature
large wind turbines with blade span diameters of over 100 m are available for electric power generation. consider a
Determine the adiabatic flame temperature for constant pressure combustion of a stoichiometric propane air mixture assuming reactants at 298 k . No dissociation of the products and constant specific heats evaluated at 298 k.
Cooks often use aluminum pans for cooking in ovens. Some cooks try to reach into the hot oven and lift the pan out without hotpads. How successful would they be? Explain
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