Calculate the *altitude* of an "ares-synchronous" orbit, that is, calculate the orbital altitude above mars for a satellite that has the same rotation period as mars. (a) what launch speed from the surface of mars is required to place a satellite in synchronous orbit around mars? you may neglect any rotation of the surface of marsfor part (b).take the mass of mars to be 6.4171*1023kg, the radius of mars to be 3389.5 km, and its rotation period to be 24.623 hours.

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%)