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Rocket in resisting medium A rocket of initial mass M, of which M - m is fuel, burns its fuel at a constant rate k and ejects the exhaust gases with constant speed u. The rocket starts from rest and moves through a medium that exerts the resistance force -?kv, where v is the forward velocity of the rocket, and ? is a small positive constant. Gravity is absent. Find the maximum speed V achieved by the rocket. Deduce a two term approximation for V, valid when ? is small.
by treating it as an undamped single-degree-of-freedom system. Use the numerical procedure described in Section 4.3.
a 25kg steel tank having a volume capacity of 250 litres is filled with liquid water at room temperature. what is need
A body moving in an inverse square attractive field traverses an elliptical orbit with major axis 2a. Show that the time average of the potential energy V = -γ /r is -γ /a.
What is chance variation? What are the causes of it? How can it be altered?
using ees or other software investigate the effect of reheat pressure on the performance of an ideal rankine cycle. the
If the bending moment M of the rod is measured at the wall, derive a formula for the estimated velocity of the flow.
describe on your own words the three strengthen mechanism for metals i.e. grain size reduction solid solution
Create a cut plot of velocity in top plane and create a surface plot each for temperature and pressure and create flow trajectories plot for velocity.
a high-velocity water jet at 30 degrees celcious is proposed for use as a cutting device with possible applications in
A 455 cm3 vessel contains a mixture of Ar and Xe. If the mass of the gas mixture is 2.245 g at 25.0°C and the pressure is 760. Torr, calculate the mole fraction of Xe in the mixture.
Drought conditions in the southwestern United States have prompted officials to question whether the operation of residential swimming pools should be permitted.
The offset slider-crank mechanism illustrated in the figure (unit is mm) is driven by link 2. At this moment, velocity of point C is 1000 mm/s to the left. Determine the instantaneous velocity of point B and point D, and the angular velocity of links..
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