Assume that you have a wireless application you would like to design, build and sell as a commercial product. You have selected a target frequency in the UHF range. How would you decide what frequency to use and how would you get permission to use it ?

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false

Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?