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A glass is initially filled with some water, see Figure 3.4. The volume of the water is measured to be 240 cm3. Some sand particles are carefully poured into the water, avoiding the formation of air bubbles. The water table in the glass then rises to indicate a volume of 320 cm3. The sand particles come to rest at the bottom of the glass, indicating a total volume of 144 cm3. Calculate the porosity n of the sand. Also calculate the void ratio e.
Design a single-cylinder atmospheric engine capable of lifting a mass of 1000 kg to a height of three meters. Assume reasonable values of cylinder temperature and pressure after combustion.
the old style heating uses steam or hot water in an radiator to heat a room in winter time. a radiator can be
A 1.2Âm3 rigid tank contains nitrogen gas at 200 kPa and 350 K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa. The work done during this process is
a paper plant replaces an aged and worn 150 ho engine with an efficiency of 90 with an updated model with an efficiency
The slotted wheel rolls to the right without slipping,
What general conclusions can you draw?
a farm equipment manufacturer has a need to actively reduce the vibration of the operators seat using an electrodynamic
An octave is defined as a doubling of the frequency. The claim is made that a low-pass Butterworth filter of order n has a roll-off (attenuation) of 6n dB/octave. Calculate the gain in dB for a second-order filter for the cut-off frequency itself, an..
a wyre has tensile strength of 80 ksi and a diam 0.19. starting material 1 diam rod. after going through steps you
a spherical mini submarine of diameter 3 m is designed to be operated by two persons. the submarine is used for deep
The Annual Energy Outlook with Projections report released by the U.S. Energy Information Administration projects annual consumption estimates for various fuel types through the next 25 years.
What is the primary difference between the strength of a structure and the strength of a material? Is a strong material stiff?
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