A lossless transmission line of 50 ohms impedance is connected to a resistive load of 80 ohms. Find the reflection coefficient (defined in terms of voltages), the standing wave ratio and the input impedance of the line assuming the length of line as a) one-quarter wavelength and b) one-half wavelength. Comment on the result you found in the latter.

The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

Write down two additional questions about earth's magnetic field that will make your presentation more informative.