Explanation:
इसिसिसिसैस्स्स्स्स्स्स्स्स्स्सूस्सोस्स्स्स्स्स
Answer:
The objective of a properly proportioned concrete mix are:
- To produce the combination of cementitious material, water, and aggregate that meets the requirements of a particular structure, portion of a structure, or series of structures at least cost.
- To produce concrete of the specified properties.
- To produce a satisfactory of end product, such as beam, column or slab as economically as possible.
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Let's not take into account atmospheric pressure.
Pressure P = Pressure of oil column + Pressure of water column
= h1 . d1.g + h2.d2. g
=( 0.5 x 800 x 9.8) + ( 1x 1000x 9.8) = 3920+ 9800 = 13720
Hence guage pressure at bottom is
P= 13720 N/ m^2
19 vans are needed. 9 for the boys and 10 for the girls
If you only can have 8 students in each van you need to divide each number by 8. So 72/8 is 9 for the boys and 75/8 is 9.4 since this is over 9 you’ll need 10 for the girls.