1. A form for a large cast-in-place concrete wall is 13 ft. high. Concrete will be placed using a 42 meter pump at the rate of 6 vertical ft. per hour. The concrete temperature is anticipated to be 80^o F. a) Draw a neat sketch of the concrete pressure diagram when the concrete has reached full height. Clearly show all key dimensions in ft. and pressure values in #/sf.

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Temperature Difference and Heat Transfer

Whenever there is a flow of heat flux resulting from a temperature gradient within the material or between two materials, there is heat transfer. Heat transfer primarily arises due to temperature differences between two bodies or within bodies. The term temperature gradient denotes temperature differences or variation of temperature due to change in some quantity. The fundamental use of the concept of temperature is found in the zeroth law of thermodynamics.