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the hammer of a pile driver of mass 15000kg falls freely through a distance of 2m onto a pile. The impact takes place in 0.02 seconds and the hammer does not rebound. determine the average applied force exerted on to the pile hammer. Note because the force is applied over a short time period it can be considered as an impulse force.
which of these two processes will produce the largest amount of work? (You must provide a full explanation for your choice).
For the preliminary design a power of 0.5kW/m^3 volume is to be used. Calculate the dimensions of the agitation system, rpm, and kW power.
determine the expressions for attractive and repulsive energies, EA and ER as a functions of r where r is in nm and E is in eV.
A 12 Volt battery is charged by supplying 3 Amps over a period of 6 hours. What is the change of energy stored in the battery if the battery loses 400kJ of heat during charging.
Direct Stress and Strain, A steel rod having a cross-sectional area of 0.005m2 and length 3m is attached to supports.
Evaluate the variation of hoop stresses across the wall of the compound cylinder.
Write a short technical report on Frequency Division Multiplexing
the reynolds number of a fluid flowing through a 5-cm-diameter, square-edged orifice plate meter within a 15-cm pipe is 250,000. Find the discharge coefficient for flange taps.
A train accelerates uniformly along a straight track and passes three trackside markers. The distance between the first two markers is equal to 0.25 km and between the second and third the distance is 0.4km
Whit is the critical crack length in iron according to the Griffith-Orowan equation if surface energy=10^3J/m^2?
Define- hydraulic mean radius, hydraulic dept, section factor and most efficient dhannel cross section.
what speed will the sleeve attain? The temperature oƒ the sleeve remains constant.
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