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!
Question
Refrigerant is flowing while a ¾ inch O.D. copper tube under conditions such that its mixed temperature is 15 °F. Condensation of moisture from atmosphere on the outside of the tube is considered a nuisance, so it is decided to protect the tube with glass wool [k = 0.025 Btu/ (h) (ft) (°F)]. Discover minimum thickness of glass wool necessary to prevent condensation on the outer surface of insulation. Air in the room is at 70 °F but it has a dew-point temperature of 45 °F. The natural convection heat-transfer coefficient between insulation surface and the air in the room is represented by h = 0.5 (Δt)1/4, in which Δt is temperature drop in °F between the insulation surface and the air in the room, and h is in Btu/(h)(ft2)(°F). The convective coefficient between inner wall of the tube and refrigerant is sufficiently large that resistance to heat transfer in the refrigerant is negligible. The resistance of the copper tube to heat transfer is also insignificant.
In a proton accelerator, the energy of proton is 20MeV, the diameter of the beam is 2.0mm, Find the current density and the particle density in the beam
The electric potential at a position located a distance of 18.6 mm from a positive point charge of 7.50×10-9C and 14.8 mm from a second point charge is 1.10 kV
An AC generator operates at 22 V and delivers 200 W of power through an ideal (no loss) transformer to the load with the resistance 4.0 \Omega
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 2.85 multiplied by 10-4 m3, What mass of gold is contained in the rock
A sealed 62 m3 tank is filled with 6000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. find the mass density of the oxygen gas
A ball is at the top of a ramp that is 4.5 m above a table. If the ball rolls without friction, how fast is it going at the bottom of the ramp
The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find out the final speed of puck A also Find out the final speed of puck B. m/s
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him, What is the force of friction between the losing player's feet and the grass
The potential differences across the capacitors are the same only if the capacitances are the same.
A cannonball is launched from ground level and lands at ground level. If it is launched with a speed of 76.2 m/s and stays in the air for 6.4 s, What angle was the cannon shot at
After reaching its maximum height, the ball moves into the hoop on its downward path, at 3.05 m above the ground. Using the principle of energy conservation,
Theoretically where on a rollercoaster should you feel the heaviest? Use the concept of inertia. Where do you actually feel the heaviest
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