Предмет: Английский язык, автор: shdr060796

19 Rewrite the following passage in the passive. Yesterday afternoon, a volcanic eruption destroyed an entire village. Mount Sirius, which experts thought was dormant, erupted at 3 pm. Tourists had seen smoke ri- sing from the mouth of the volcano two days before. The police moved the villagers away from the area for their own safety. Tons of lava and rock came out of the volcano and wrecked houses, roads and trees. Although the blast physically injured only a few people, doctors are treating many for shock. The authorities are keeping the area surrounding Mount Sirius. clear in case of further activity.​


karaleva19: Here you are

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Автор ответа: karaleva19
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shdr060796: Thank you so much for your exercise
karaleva19: Here you are
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Newton’s law of universal gravitation is formulated in the following manner: Any two material particles attract each other with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them. In other words, the magnitude of the force of attraction is expressed by the formula 2 F=k m1 m2\r , Where F is the force of attraction, m1 and m2 are the masses of both particles, r is the distance between them, and k is the factor of proportionality (the constant of universal gravitation). According to the law of equality of action and reaction, the force with which the first particle attracts the second is equal in magnitude and opposite in direction to the force with which the second particle attracts the first. Both of the forces act along a straight line connecting the given particles. It is evident that the factor of proportionality is numerically equal to the magnitude of the force of attraction of two particles with masses equal to unity and at a unit distance from one another. The choice of the units of the measurements is arbitrary. The centimeter-gram-second system of units used in physics is not convenient for the study of the motion of astronomical bodies, where mass and distance are expressed by huge numbers in these units. It is shown in the theory of potential how bodies of finite dimensions attract one another. Formulas derived there find application in theoretical astronomy when it is necessary to consider the motion of bodies during their immediate approach to one another. In general, however, one may consider that bodies of the solar system attract one another mutually as material points.