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Consider a large cubic ice block floating in sea water. The specific gravities of ice and seawater are 0.92 and 1.025, respectively. If a 10-cm-high portion of the ice block extends above the surface of the water, determine the height of the ice block below the surface.
Consider a large cubic ice block floating in sea water. The specific gravities of ice and seawater are 0.92 and 1.025, respectively. If a 10-cm-high portion of the ice block extends above the surface of the water, determine the height ...

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An equal-tangent crest curve has been designed for 70 mi/h to connect a +2% initial grade and a -1% final grade for a new vehicle that has a 3 ft driver’s eye height; the curve was designed to avoid an object that is 1 ft high. Standard practical stopping distance design was used but, unlike current design standards, the vehicle was assumed to make a 0.5g stop, although driver reactions are assumed to be the same as in current highway design standards. If the PVC of the curve is at elevation 848 ft and station 43 + 48, what is the station and elevation of the high point of the curve?
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6- A car starts from rest and moves along a straight line with an acceleration of a = 3s −1 3 ⁄ m/sec2 , where s is in meters. Determine the velocity and the position of the car after 10 seconds.

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11.7 A retaining wall of 6 m height having a smooth back retains a backfill made up of two strata shown in Fig. Prob. 11.7. Construct the active earth pressure diagram and find the magnitude and point of application of the resultant thrust. Assume the backfill above WT remains dry Cinder H, = 2 m G, = 2.5, n = 0.7 Q = 35° Sand H2 = 4 m G = 2.6, n = 0.3 o = 30° 2 m Figure Prob. 11.7
11.7 A retaining wall of 6 m height having a smooth back retains a backfill made up of two strata shown in Fig. Prob. 11.7. Construct the active earth pressure diagram and find the magnitude and point of application of ...

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Ask a a) Calculate the total active thrust on a vertical wall 5 m high retaining sand of unit weight 17 kN / (m ^ 3) for which phi = 35 deg The surface is horizontal and the water table is below the bottom of the wall. (b) Determine the thrust on the wall if the water table rises to a level 2 m below the surface of the sand. The saturated unit weight of the sand is 20kN / (m ^ 3) and you will be sure to find an answer!
a) Calculate the total active thrust on a vertical wall 5 m high retaining sand of unit weight 17 kN / (m ^ 3) for which phi = 35 deg The surface is horizontal and the water table is below ...

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n Fig. P-2.11 which depicts two three-phase circuits on a steel tower there is symmetry about both the horizontal and vertical centre lines. Let each three-phase circuit be transposed by replacing a by b and then by c, so that the reactances of the three-phases are equal and the GMD method of reactance calculations can be used. Each circuit remains on its own side of the tower. Let the self GMD of a single conductor be 1 cm. Conductors a and a’ and other corresponding phase conductors are connected in parallel. Find the reactance per phase of the system.
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In Fig. P-2.11 which depicts two three-phase circuits on a steel tower there is symmetry about both the horizontal and vertical centre lines. Let each three-phase circuit be transposed by replacing a by b and then by c, so that the reactances of the three-phases are equal and the GMD method of reactance calculations can be used. Each circuit remains on its own side of the tower. Let the self GMD of a single conductor be 1 cm. Conductors a and a’ and other corresponding phase conductors are connected in parallel. Find the reactance per phase of the system.
In Fig. P-2.11 which depicts two three-phase circuits on a steel tower there is symmetry about both the horizontal and vertical centre lines. Let each three-phase circuit be transposed by replacing a by b and then by c, so that ...

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