Select the correct answer. Which label best fits the following text?
Sir Isaac Newton, the first person who studied gravity seriously, discovered what is known as the law of universal gravitation. It defines the
amount of attraction of one particle of matter on another particle of matter. The formula for figuring the amount of attraction, or
gravitational force, is written in the following way:
G. mm
F grav =
d2
The formula means that first you multiply the constant of the gravitational pull between particles, G, by the mass of particle 1, my, and the
mass of particle 2. m2. Then you divide the answer by the square of the distance between them, . This equation will give you the amount
of pull or force between the two particles
It may seem reasonable to question the law of universal gravitation because Newton wrote it during the seventeenth century. However,
modern scientists have tested it using modern and innovative scientific equipment and increased knowledge of the solar system. The
formula remains true today.
А.
blographical text
B.
expository text

Read this paragraph from chapter 5 of the prince. there are, for example, the spartans and the romans. the spartans held athens and thebes, establishing there an oligarchy: nevertheless they lost them. the romans, in order to hold capua, carthage, and numantia, dismantled them, and did not lose them. they wished to hold greece as the spartans held it, making it free and permitting its laws, and did not succeed. so to hold it they were compelled to dismantle many cities in the country, for in truth there is no safe way to retain them otherwise than by ruining them. and he who becomes master of a city accustomed to freedom and does not destroy it, may expect to be destroyed by it, for in rebellion it has always the watchword of liberty and its ancient privileges as a rallying point, which neither time nor benefits will ever cause it to forget. and whatever you may do or provide against, they never forget that name or their privileges unless they are disunited or dispersed, but at every chance they immediately rally to them, as pisa after the hundred years she had been held in bondage by the florentines. what idea is stressed in the passage? the desire for liberty the establishment of an oligarchy the dismantling of an acquired state the tendency toward rebellion