An architect needs to pump 2.3 lbm/s of water to the top of the empire state building, which is about 1000 ft high. assume water at 45 psia is available at the base of the building. what is the power of the pump needed, in hp, if the flow is assumed frictionless? the velocity of the water is constant.

Gunpowder residue is most likely to show up where on a shooters hands

If a balloon is taken outside on a very cold day, what will occur?

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.