3. An 8 foot long joist has an actual cross section of 1.5" x 11.5". A load of 2,500 pounds will be applied as shown in the diagram.
a. Calculate the area moment of inertia for the joist.
in"
(report to x. x decimal places)
Load
1
11.5 in.
1.50 in.
b. Given the modulus of elasticity of the beam is 29,000,000 psi, what will the
deflection be? inches. (report to x. xxx decimal places)

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature