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If a 700 N man stands on ice skates for which the area of contact with the ice is 10 mm2, by how many degrees is the melting point of the ice lowered? (The latent heat of fusion is 6.01 × 103 J/mole. At the melting point, the density of ice is 0.917 g/cm3, and that of liquid water is 0.9999g/cm3. The molecular weight of water is 18.)
Design a wide flange, simply supported beam below so that the stress due to bending does not exceed that allowed by AISC for A36 steel and calculate the shear stress where the parts join as indicated. Maximum V = 10,000 lb.
the body on the 30 degrees incline is acted upon by a force p inclined at 20 degrees with the horizontal. if p is
a particle of mass m is projected from point a with an initial velocity v0 perpendicular to line oa and moves under a
an industrial process requires that a liquid be stirred. an electric motor is used to drive the stirring device. the
An ideal gas (MW = 26.0 lbm/lb·mol) undergoes a poly tropic process (with poly tropic index being 1.67) from an initial state of 6.9836 ft3/lbm and 60°F to a final volume of 0.86848 ft3/lbm. Show the process on a P-v diagram. Find the specific work o..
packages are thrown down an incline at a with a velocitynbspof 1 ms. the packages slide along the surface abc to
(a) Estimate the surface temperature of the fourth device located 15 mm from the leading edge of the board. (b) Generate a plot of the surface temperature of the first four devices as a function of the free stream velocity for 5 uoo 15 m/s.
The average high and low temperatures in Dayton OH in September are about 77Fand 56F, respectively. What is the high temperature reported in (a) K, (b) C, and (c) R? What is the dismal temperature difference (delta T=21 F) when reported in (d) K, (e)..
a corroded metal plate was found in a submerged ocean vessel. the original dimensions of the plate were 25 x 10 x 5 cm.
An aircraft radio transmitter weighs 26 kg and is mounted on five springs with deflection 8 mm when the transmitter is placed upon them. Neglecting damping, find the percentage of vibration received by the transmitter for engine speeds of 1500 rpm..
saturated liquid water is heated at constant pressure in a steady-flow device until it is a saturated vapor. calculate
1. what are the four basic aerodynamic forces?2. what is the continuity equation and its basic physical concept?3. what
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