The motion sensor depends on which of the following for its operation? 1. the emission of a short burst of sound waves. 2. doppler shift measurements of the reflected sound wave 3. measurement of the time between the burst and the detection of an echo. 4. calculation of a distance from the time and the speed of sound. 5. calculation of the velocity from the doppler shift.

What is the fate of the electrons that interact with a specimen in an electron microscope?

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%)

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water