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A fireworks shell is launched vertically from point A with speed sufficient to reach a maximum altitude of 500 ft. A steady horizontal wind causes a horizontal acceleration of 0.5 ft/s2 without affecting the vertical motion. What angle acompensates for the wind such that the shell peaks directly over the launch point A? What is the maximum height h achievable when launched at this angle?
a hot water leak in one of the facets of your apartment can be very wasteful. a continuous leak of one quart per hour a
water enters a nozzle with a circular inlet are with a diamter of 5 cm at a velocity of 3 ms. the outlet diameter is 2
a link AC has uniform rectangular cross section 3mm thick and 25mm wide. Determine the normal stress in the central portion of that link? solution
air at 100 kpa and 27degc enters an isentropic compressor at a rate of 100 ls and leaves at 1000 kpa. determine the
if block d weighs 300 lb and block b weighs 275 lb, determine the required weight of the block c and the angle theta for equilibrium.
If the peak pressure and peak temperature of the cycle are 4.8 MPa and 2500, determine the net work done per cycle (kJ/kg) and the cycle thermal efficiency .
a car that weighs 3000 lb is traveling on a hill at a constant speed of 40.1 fps. the crest of the hill has a radius of
The Brayton cycle shown in figure 6.41 operates using CO2 as a working fluid with compressor and turbine isentropic efficiencies of 1.0. Calculate the thermal efficiency of this cycle when the working fluid is modeled.
If the rod experienced 28% uniform strain, calculated the load at the onset of necking.
what is a beach profile that will provide protection to the infrastructure fronting a beach is it a wide well profiled
a refrigeration system is designed to operate between temperture limits of -10 c and 25 c. the power input to the steam
you are given a task of compressing a fixed quantity of gas from P1,T1 to P2,T1. you wish to do this using a polytropic process coupled with a constant pressure P2 heat-transfer process. determine the polytropic process that minimizes the entropy ..
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