(refer to figure 34.) you have 80 gallons of usable avgas. you know it takes 20 gallons of
avgas for start, taxi, takeoff, descent, and landing. what would be your maximum cruise flight
time with day, vfr reserves?
given:
pressure altitude 6,000 ft
temperature 3 °c
power 2,400 rpm - 24" mp
a) 2 hours and 47 minutes.
b) 3 hours and 30 minutes.
c) 3 hours and 58 minutes.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?