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A high-speed jet is used to cut solid materials. Estimate the maximum pressure developed on the material if the velocity issuing from the water jet is ( a ) 100 m = s, ( b ) 120 m = s, and ( c ) 120 m = s.
a turning operation calls for a single pass on a 3 diameter part down to 2.800 on a lathe using a hss high speed steel
the flow of an ideal gas may be considered incompressible if the mach number is less than 0.3. determine the velocity
405-N rightward force is use to drag a large box across the floor with a constant velocity of 0.678 ms-1. The coefficient of friction between the box and the floor is 0.795. Determine the mass of the box.
a rock climber of weight w has a rope attached a distance h below him for protection. suppose that he falls and assume
A piston cylinder device contains 3kg of water vapor at 30 bar and 350ºC. it is cooled at constant volume until the temperature reaches 195ºC. Then it is compressed at constant temperature to 20bar. (a) Show the process on a T-V diagram. (b) Determin..
a rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300degc. after a period of time the
However, the Larson-Miller parameter can also be expressed as Pt = T(C t + ln t) with t in seconds and T in kelvin, using the natural logarithm of time. In these cases, what is the value of C t?
a set of steel reinforcing rods is to be stretched axially in tension to create a tensile stress of 30ksi prior to
coming out of a factory chimney are the following gases co2 so2 o2 n2 h2o with volume percentage to be 13.5 0.3 5.2 76
A thermodynamicist is attempting to model the process of balloon inflation by assuming that the elastic casing behaves like a spring opposing the expansion as presented in the figure. As air is admitted, the spring is compressed.
The curved wall is well-insulated and may be regarded as adiabatic. Heat transfer between the surfaces occurs only by radiation.
a temperature measurement device with a time constant of 0.15 seconds outputs a voltage that is linearly proportional
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