Aman is flying in a hot-air balloon in a straight line at a constant rate of 5 feet per second, while keeping it at a constant altitude. as he approaches the parking lot of a market, he notices that the angle of depressions from his balloon to a friend's car in the parking lot is 35 ∘ . a minute and a half later, after flying directly over this friend's car, he looks back to see if friend getting into the car and observes the angle of depression to be 36 ∘ . at that time, what is the distance between him and his friend? (round to the nearest foot.)

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Blank liquids and gases exert a buoyant force on objects placed in them