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Dry air, flowing at a velocity of 1.5 m/s, enters a 6-mlong, 0.15-m-diameter tube at 310 K and 1:013 × 105 Pa. The inner surface of the tube is lined with a felt material (diameter-to rough ness ratio, D/e, of 10,000) that is continuously saturated with water at 290 K.
Assuming constant temperature of the air and the pipe wall, determine the rate at which water must be added to keep the felt continuously saturated.
It is important to realize that the bulk composition of the gas stream will be continuously increasing with the length.
imagine that construction crews have set up a pair of blinking lights 60m apart to make a construction zone along a
If the coefficient of volume expansion of mercury is 18x10(^-5) (K^-1), what is the coefficient of volume expansion in the glass?
A boy on a 2kg skateboard initially atrest tosses an 8kg jug of water in theforward direction. find the boy's mass
A Pelton impulse turbine has blades designed so that the direction of the incoming water jet with speed u is reversed. If the speed of the blades is u_c then, relative to the blade, the magnitude of the total change in the velocity of the jet is 2..
Romeo takes a uniform 12 m ladder and leans it against the smooth wall of the Capulet residence. What is the coefficient of static friction between the ground and the ladder
some asteroid is a whoping 2 x106km from planet earth. it moves at speed of 10 kms. without gravitation pull this
A proton, an electron, and an alpha particle (of charge +2e) form an equilateral triangle of side length 2.19×10-10 m. What is the electric potential energy of the three-particle system
a camera lens is initially set at f16 for a shutter speed of 1160s. if the amount of lighting on the subject is
A bird sits on a high-voltage power line with its feet 5.2 cm apart. What is the potential difference between the bird's feet
The spheres are given the same electric charge Q and it is found that they come to equilibrium when each string is at an angle of 5 with the vertical. Each string is 30 cm long.
q1. a horizontal force of 10 n is applied to the outer edge of a door at an angle of 32deg to the door. the width of
The three ropes shown are tied to a small, very light ring that is stationary. Two of these ropes are anchored to walls at rightangles with the tensions shown in the figure. What is the magnitude of the tension T3 in the third rope, ifT1 = 56.3 N,..
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