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A particle P moves along the x-axis with its displacement at time t given by x = 6t2 - t3 + 1, where x is measured in metres and t in seconds.
Find the velocity and acceleration of P at time t. Find the times at which P is at rest and find its position at these times.
a block weighing 10 lbf and having dimensions 10 in. on each edge is pulled up an inclined surface on which there is a
Plot the singular stress components, σxx, σyy and τxy for a cracked body under Mode I, Mode II and Mode III loading with a stress intensity factor Ki = 10 MPa·m1/2 (i = I, II and III). Plot the stresses near the crack tip (r
a closed system contains 2 kg of saturated steam at 3 mpa. the steam expands in a reversible process which can be
Assume a fire truck can shoot water from an onboard tank; there is no inflow of water into the tank. What force must a truck engine produce to keep the truck stationary while the fire hose shoots a jet at 45 degrees at a volume flow rate of 2.4 m3/s ..
ethanol c2h5oh is burned with air in a sie with a fuel-rich mixture. consider mon 89 and ron 107 for this fuel.
solve using the ideal-gas law the generalized compressibility factor and steam tables. compare the specific volume of
a two-stage air compressor operates at steady state compressing 10 m3min of air from 100kpa 300 k to 1200 kpa. an
Most spreadsheets have financial functions built in. Use these to answer the following question: If you now started saving $200 per month until you were 65, how much money would you have saved?
the inlet to a boiler of a carnot power cycle is at 5 mpa saturated liquid and the exit is saturated vapor. the
If it is assumed that the electrical resistance between the surfaces is 140 micro-V, and that only one-third of the electrical energy generated will be used to form the weld nugget (the rest being dissipated), determine the minimum current level r..
the vertical motion of mass a is defined by the relation x10sin2t15cos2t100. determine a the position velocity and
Show that the rms value of a rectangular wave can be changed by phase-shifting it and adding to the original signal. What is its applicability in the control of induction motors?
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