Discuss the change in internal energy
A closed piston-cylinder with air expands and does 2000 ft-lbs of work. Heat is added in the amount of 4 btu. What is the change in internal Energy.
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A model (1/10 of scale) of a tractor-trailer rig is tested in a wind tunnel. Calculate the coefficient of drag assuming that the density of air is 1.25 kg/m^3.
Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 60.0 cm mark.
The moment of inertia of the student plus stool is 3.09 kg·m2 and is assumed to be constant. The student pulls the weights in horizontally to a position 0.302 m from the rotation axis.(a) Find the new angular speed of the student.
Determine the simplified structure factor equations for each cell and the positions (2theta values) that would be observed (F^2=0) on a powder pattern made with CuKalpha radiation.
Each month's ending inventory of raw materials should be 30% of the following month's budgeted production. The January 1 raw materials inventory has 438 pounds of Z. Prepare a direct materials budget for January.
A gondola on a ski lift is supported by two bent arms, as shown in Fig. 3. Each arm is offset by the distance b=180 mm from the line of action of the weight force W. The allowable stresses in the arms are 100 MPa in tension and 50 MPa in shear.
Graphically determine the angular rotation required to orient the sample for 300 diffraction if a theta-2theta diffractometer is used.
The distance between the slits and the screen is two meters. Calculate the slit width and slit separation.
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