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Question: 1. Air is flowing steadily through a duct whose inner walls are at 800°F. A thermocouple housed in a 1-in. OD steel well with rusty exterior indicates a temperature of 4500F. The air mass velocity is 3600 lbmassh ft2. Estimate the true temperature of the air.
2.Calculate the heat loss per foot from a 3-in. Schedule 40 pipe [D = 3.07 in, OD = 3.50 in.; k = 25 Btu/(h ft °F)] covered with a 1 1/4 in. thickness of insulation F = 0.1 Btu/(h ft OF)
Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. with what speed vf do Olaf and the ball move afterward
"Calculate the gravitational potential energy at the surface of the sun. How much would the sun have to shrink each second in order to generate the Luminosity of the sun just by converting gravitational potential energy?" The hint my teacher gave ..
In this problem, you will work through making sense of the thermodynamic quantities of entropy (S), internal energy (Uint), enthalpy (H), and Gibbs free energy (G) in a simple toy model in which you can actually calculate everything explicitly: th..
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
In alpha particle with a kinetic energy of 0.51 MeV approaches a stationary gold nucleus. What is the speed of the alpha particle?
A person who weighs 628 N is riding a 91.6 N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 7.51E+5 Pa, what is the area of contact between each tire and the..
A sine wave generator has an output waveform v(t) = 14.14 cos ( 2 PI 1000 t).
Two long parallel wires each carry a current of 5. A directed to the east. The two wires are separated by 8 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires.
A 0.036 kg aluminium bullet travelling 430 ms strikes an armor plate and comes to a stop. If all its energy is converted to heat that is absorbed by the bullet, what is the bullets temp change in Celsius?
You are standing on the edge of a turntable with frictionless bearings. It is initially rotating when you catch a ball, which ismoving in the same direction but faster than you are moving and ona line tangent to the edge of the turntable. Assume y..
An electromagnetic wave produced by a dipole antenna is traveling in free space and has an rms electric field amplitude of 17 N/C. find the rms amplitude of the magnetic field
Assume that initial conditions have been set up so that the ball's motion forever lies in one parabola. Let this parabola hit the rings at an angle ? from the horizontal.
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