2.2 Derive the equations of motion for flight at constant altitude and constant velocity. Show that these equations have zero mathemat- ical degrees of freedom. Also, show that Eqs. (2.24) reduce to these equations when combined with h-Const and V Const. Vsin γ WCT

Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false

In the winter, in order to keep the classroom steadily at 68 f before 10 pm, heating with an average rate of 42,000 btu/hr is provided. assume the outdoor temperature maintains at 32°f, determine the electrical power (kw) required to (a) operate a reversible heat pump (b) operate a real heat pump with a cop (7) of 4.5 and (c) operate an electrical-resistance heater.