Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. The second stage of a two-stage rocket weighs 2000 lb (empty) and is launched from the first stage with a velocity of 3000 mi> h. The fuel in the second stage weighs 1000 lb. If it is consumed at the rate of 50 lb> s and ejected with a relative velocity of 8000 ft> s, determine the acceleration of the second stage just after the engine is fired. What is the rocket's acceleration just before all the fuel is consumed? Neglect the effect of gravitation.
2. The missile weighs 40 000 lb. The constant thrust provided by the turbojet engine is T = 15 000 lb. Additional thrust is provided by two rocket boosters B. The propellant in each booster is burned at a constant rate of 150 lb >s, with a relative exhaust velocity of 3000 ft>s. If the mass of the propellant lost by the turbojet engine can be neglected, determine the velocity of the missile after the 4-s burn time of the boosters. The initial velocity of the missile is 300 mi>h.
circular copper rods of diameter d1mm and length l25mm areused to enhance heat transfer from a surface that is
a closed rigid container has a volume of 2 m3 and is filled with 4 kg of water at 200 kpa. heat is transferred from the
water exits the firehose into atmosphere of 101kpa. the water exit the firehose with sufficient velocity to travel 30
a converging-diverging nozzle has a design mach number of 2.0 . the stagnation pressure at the nozzle inlet is 100
a water cannon for rock tunneling operates by using compressed gas for accelerating a 65-kg high-strength titanium
Several of the new city council members "are up in arms" over the new annual fee and cost structure. However, they do not want to build more fire station capacity or own a lader truck that will be used an average of only 20 times a year.
a 70 meter tall cylindrical tower with outer diameter 12 meters is exposed to a very cold evening where the temperature
Sunflower oil contains 0.070 mol palmitic acid (C16H32O2)/mol, 0.060 mol stearic acid (C18H36O2)/mol, 0.28 mol oleic acid (C18H34O2)/mol, and 0.59 mol linoleic acid (C18H32O2)/mol. To create margarine from sunflower oil, the liquid oleic and linoleic..
for your sink at home the flow rate in is 5000 unitshr. accumulation is 2500 units. what is the accumulation rate if
a pistoncylinder has a water volume separated in va .2m3 and vb .3m3 by a stiff membrane. the initial state in a is
A Circular plate having a diameter of 30mm is held perpendicular to an axisymmetric horizontal jet of air having a velocity of 40m/s and a diameter of 80mm as shown in the figure. A hole at the center of the plate results in a discharge jet of air..
a piston-cylinder device contains 0.15kg of air initially at 2mpa and 350oc. the air is first expanded isothermally to
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd