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What mass (in grams) of steam at 100°C must be mixed with 387 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 26.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, and the latent heat of vaporization is 2256 kJ/kg.
Determine the acceleration of the initially stationary 20-kg body when the 50-N force P is applied. The small wheels at B are ideal, and the feet at A are small.
What is the ratio of the magnitude of E2 to the magnitude of E1? You may neglect the effects of gravity on the proton.
a 25-mm diameter steel cylinder 300-mm long falls, because of its own weight, at a uniform rate of 0.1 m/s inside a tube of slightly larger diameter. A castor-oil film of constant thickness is between the cylinder and the tube.
What is the smallest particle size (density 2.65 g/cm3) that will be removed in a horizontal grit chamber 10 m long and 1.0 m deep if the flow rate is 1000 m3/hr. Assume the temperature of the water is 25°C.
An underground storage vault is to be constructed to serve as a detention pond for a heavily urbanized area. The walls of the vault will be vertical, but the flow will be sloped along its length to promote drainage.
A solid steel shaft with an outside diameter of 65 mm is subjected to a pure torque of 7,000 N-m. The shear modulus of the steel is G=80 GPa. Determine a. 1 The maximum shear stress in the shaft
Are either of the Ax or Jx forces relevant to finding the tension between H and J. If so, what is the easiest way to solve for those 2 unknowns.
A 16-ft [4.88 m] span beam is fixed at one end and simply supported at the other end. A single concentrated load of 9600 lb [42.7 kN] is placed at the center of the span.
The installation of a radon abatement device is recommended in any home where the mean radon concentration is 4.0 picocuries per liter (pCi/L) or more, because it is thought that longterm exposure to sufficiently high doses of radon can increase t..
A gas stream with a particulate loading of 20.0g/m^3 is passed through a 70%-efficient cyclone followed by a 95%-efficient ESP. Calculate the overall efficiency of the system.
Determine the carburizing time necessary to achieve a carbon concentration of 0.35 wt% at a position 2 mm into an iron-carbon alloy that initially contains 0.10 wt% C.
The value of Gs is 2.70. Calculate the void ratio and degree of saturation of the soil. What would be the values of density and water content if the soil were fully saturated at the same void ratio
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