Ahigh-flying spy-plane must take pictures of the ground with the ability to resolve some objects down to 3.33 cm in size. u-a plane with cruising altitude of 70,000 feet. 13. assuming an average wavelength of 580 nm, what is the smallest aperture diameter of the objective lens necessary to resolve the minimum sized object? if this diameter is the size made by f-stop number 8, what is the power of the primary objective? what is the distance between the lens and the ccd (the "film")? what is the magnification of the lens? what is the imaged size of the minimum sized object? if the ccd has a pixel density of 3600 pixels/cm, how many pixels are needed to image the minimum sized object? d - if ccd is a square of 25 mm in length per side, how many total pixels are there in the ccd and how large an object area can be covered by just one image?

In a steady-flow steam power plant system, two adiabatic high-pressure and low-pressure turbines ane used to generate power. superheated steam enters the high-pressure turbine at 8 mpa and 550°c. the steam expands in the high-pressure turbine to a saturated vapor at 3 mpa. in order to increase the powe generation of the power plant, another steam turbine working in a lower pressure ranges is deployed. the outlet vapor from the first turbine is heated up at a boiler to the temperature of 500 c at the constant pressure of first turbine's outlet (3 mpa). then, the vapor enters the second turbine and produces extra work. the exit conditions of the second turbine are 5o kpa and 90 percent quality. if the total power output of the power plant is 25 mw, determine a) the mass flow rate of the water (kg/s). b) heat transfer rate in the boiler (mw). (30 points) 3 mpa 00 c 8 mpa s0 c high pres turbine low pres boiler turbine 50 kpa 3 mpa 09 saturated vapor t heat engine, shown in the figure, operates between high temperature and low temperature of through a heat 4. a carnot tn and tu respectively. this heat engine receives energy from a heat reservoir at t exchanger where the heat transferred is proportional to the temperature difference as ? = k (z,-7, ). it rejects heat at a given low temperature tl. to design the heat engine for maximum work output, find the high temperature, th, as a function of tes and t. (15 points) qe

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?