Answer:
C. The buoyant forces are equal on the objects since they have equal mass.
Explanation:
Correct option (C) The buoyant forces are equal on the objects since they have equal mass. For floating objects, the buoyant force equals the weight of the objects. Since each object has the same weight, they must have the same buoyant force to counteract that weight and make them float.
The duties of school principal are those responsibilities or obligation he must carry out for proper management of the school. Some of the duties are as follows:
- Supervision of instruction
- Supervision of Curriculum Development and Improvement
- Supervision of curricula rand Co-curricular Activities
- Supervision of School Hostel
<h3>What is school administration?</h3>
School administration can simply be defined as process which involves the management of all the school operations and activities.
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Answer:
Check the explanation
Explanation:
beam span = 25 ft
dead load = 0.6 kip/ft
live load = 2.1 kip/ft
factored load = 1.2*0.6 +1.6*2.1=4.08 kip/ft
moment in beam = 4.08*252/8=318.75 kip-ft = 3825 kip-in
design strength =0.9* 50 = 45 ksi
plastic section modulus required = 3825/45=85 in3
Moment in beam in ASD = (0.6+2.1)*252/8 = 210.9 kip-ft
lighest W section from LRFD = W21x44
lightest W section from ASD = W21x44
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