Physics, 17.12.2020 21:40 ndkdidnfnk
The theory of plate tectonics describes how the Earth’s lithosphere is broken into plates and these plates move over the molten magma below. Why is this considered a theory and not a law?
A. a theory is can not be proven and is based on opinion, a law is based on facts
B. A theory is developed by a single person or small group a law is developed by a large group of scientists
C. A theory can be modified as new evidence is uncovered, a law describes a relationship under certain conditions
D. A theory is developed by observing something under certain conditions and a law can be modified as new evidence is uncovered
Answers: 1
Physics, 21.06.2019 20:20
Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
Answers: 1
Physics, 21.06.2019 21:50
Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?
Answers: 2
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