MEEN%20315%20-%20HW%2001 - 6 Can you carry 1 m 3 of liquid...

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MEEN 315-501 Fall 2010 Problem Set 01 Due: Monday September 6, 2010, 13:50 1.) An object whose mass is 6.8 kg occupies a volume of 0.7 m 3 . Determine its: a.) Weight in N at a location on earth where g = 9.45 m/s 2 b.) Weight on the moon where g = 1.7 m/s 2 2.) Determine the mass, in pounds mass, of an object whose weight is 20 lb f at a location where the acceleration of gravity is 31.1 ft/s 2 . 3.) Atomic and molecular weights of some common substances are listed in the book and other reference sources. Using reliable sources determine: a.) The number of kmol in 50 kg of each of the following: H 2 , N 2 , NH 3 , C 3 H 8 b.) The mass, in lb m , of 20 lbmol of each of the following: air, C, H 2 O, CO 2 4.) A body whose mass is 2 lb experiences an increase in velocity from 20 fps to 50 fps (fps = ft/s). Determine the change in kinetic energy in : a.) ft-lb f b.) Btu 5.) A spring stretches 0.2 cm per newton of applied force. An object is suspended from the spring and a deflection of 3 cm is observed. If g = 9.81 m/s 2 , what is the mass of the object, in kg?
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Unformatted text preview: 6.) Can you carry 1 m 3 of liquid water? Why or why not? 7.) A steel cylinder of mass 2 kg contains 4.0 L of liquid water at 25 degrees centigrade at 200 kPa. Find the total mass and volume of the system. List two extensive and three intensive properties of the water. 8.) A tank has two room separated by a membrane. Room A has 1 kg air and a volume 0.5 m 3 . Room B has 0.75 m 3 air with density 0.8 kg/m 3 . The membrane is broken and the air comes to a uniform state. Find the final density of the air. 9.) One kilogram of diatomic oxygen (O 2 , molecular weight 32) is contained in a 500-L tank. Find the specific volume on both a mass and mole basis (v and v ). 10.) Are you an equilibrium system? Why or why not? 11.) Evaluate the following: + x 1xdx + 4x3 1 dx +-x 13x 2dx 0π4sec2x dx dxx 12.) Evaluate the derivatives of the following: = ( -+ ) fx x4 1 2x 1 =(- ) hs s3 2 2 = + fθ θ 1cosθ = fx sinxx = fx x2tan x...
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