Explanation:
The structure and operation of the complex societies of the developed world are completely dependent on countless applications of technology, as we can observe in our daily lives. But what we may be less conscious of is that the evolution of society - what it will be tomorrow - is also highly dependent on our development and application of technology; to a large extent our society is what it is today as a result of the technology we chose to apply in the past. Engineers play a major role in the development and application of technology, and so have a responsibility for the evolution of society. It is the nature of that responsibility that is the subject of this paper, and it is suggested that it is mainly in providing the information society requires in order to make its decisions.
Answer:
the order is as follows:
London dispersion < Dipole-Dipole < H-bonds < Ionic bonds
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The greatest negative impact of a new hydroelectric dam is the changes in the surrounding landscape.
Hydroelectric dams are among the cleanest energy sources, they don't generate waste, pollutants or atmospheric emissions. The negative impact is given by the landscape transformation needed to take advantage of the natural conditions of the dam. They stand out wherever they are, so it is important to consider the aesthetic aspect when building a dam.
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Yes it is always changing, as time moves on new technological advancements are made. This makes it possible for new ideas to be created. For example the depiction of an atom went through many stages throughout the years in order to find out our current final version. New scientists and new ideas can add on to older ones, making explanations that make more scientific sense.
<u>Answer:</u> The concentration of radon after the given time is
<u>Explanation:</u>
All the radioactive reactions follows first order kinetics.
The equation used to calculate half life for first order kinetics:
We are given:
Putting values in above equation, we get:
Rate law expression for first order kinetics is given by the equation:
where,
k = rate constant =
t = time taken for decay process = 3.00 days
= initial amount of the reactant =
[A] = amount left after decay process = ?
Putting values in above equation, we get:
Hence, the concentration of radon after the given time is