Aswine nursery building is being designed to hold 300 pigs weighing 50 pounds each. water vapor production in the building (from animal respiration and evaporation from wet surfaces) is expected to be 40.2 lbs h2o/hr. outside air at 30 degrees f dry bulb and 50% rh is to be blown through a fan into the building. the air inside the building is to be at 65 degrees f dry bulb and 70% rh. find: a) volumetric flow rate (cfm) of air that the fan should move to remove moisture from the building, and b) the rate at which heat (btu/hr) will be removed from the building in the ventilation air.

Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m

1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?