Problem: Please answer a question about the following article about Antenna (radio):
For horizontal propagation between transmitting and receiving antennas situated near the ground reasonably far from each other, the distances traveled by tne direct and reflected rays are nearly the same. There is almost no relative phase shift. If the emission is polarized vertically, the two fields (direct and reflected) add and there is maximum of received signal. If the signal is polarized horizontally, the two signals subtract and the received signal is largely cancelled. The vertical plane radiation patterns are shown in the image at right. With vertical polarization there is always a maximum for =0, horizontal propagation (left pattern). For horizontal polarization, there is cancellation at that angle. Note that the above formulae and these plots assume the ground as a perfect conductor. These plots of the radiation pattern correspond to a distance between the antenna and its image of 2.5. As the antenna height is increased, the number of lobes increases as well.
When is the emission at maximized recieved signal?
A: polarized vertically
Problem: Please answer a question about the following article about Houston:
Houston (i/hjustn/ HYOO-stn) is the most populous city in Texas and the fourth most populous city in the United States, located in Southeast Texas near the Gulf of Mexico. With a census-estimated 2014 population of 2.239 million people, within a land area of 599.6 square miles (1,553 km2), it also is the largest city in the Southern United States, as well as the seat of Harris County. It is the principal city of HoustonThe WoodlandsSugar Land, which is the fifth most populated metropolitan area in the United States.
What was the population of Houston in 2014?
A: 2.239 million people
Problem: Please answer a question about the following article about Bird migration:
The ability of birds to navigate during migrations cannot be fully explained by endogenous programming, even with the help of responses to environmental cues. The ability to successfully perform long-distance migrations can probably only be fully explained with an accounting for the cognitive ability of the birds to recognize habitats and form mental maps. Satellite tracking of day migrating raptors such as ospreys and honey buzzards has shown that older individuals are better at making corrections for wind drift.
What are older migrating birds better at?
A: making corrections for wind drift
Problem: Please answer a question about the following article about Presbyterianism:
However, with the Glorious Revolution of 1688 the Church of Scotland was finally unequivocally recognised as a Presbyterian institution by the monarch due to Scottish Presbyterian support for the aforementioned revolution and the Acts of Union 1707 between Scotland and England guaranteed the Church of Scotland's form of government. However, legislation by the United Kingdom parliament allowing patronage led to splits in the Church. In 1733, a group of ministers seceded from the Church of Scotland to form the Associate Presbytery, another group seceded in 1761 to form the Relief Church and the Disruption of 1843 led to the formation of the Free Church of Scotland. Further splits took place, especially over theological issues, but most Presbyterians in Scotland were reunited by 1929 union of the established Church of Scotland and the United Free Church of Scotland.
Which group was formed when ministries seceded from The Church of Scotland in 1733?
A:
Associate Presbytery