Which of the following statements correctly describes the models put forth by Ptolemy and Copernicus to explain the universe? A.
Through observations, both astronomers presented models where the earth remained stationary. B. Both of the models were easy to understand and thus were well received by the public almost instantly. C. The sun was in the center of Ptolemy's model, but the Earth was in the center of Copernicus' model. D. The model developed by Copernicus was simpler and had less inconsistencies than Ptolemy’s model.
The correct option is D. The model developed by Ptolemy has a lot of inconsistency and during the middle age additional explanation was offered for the claims made by the model. The model was very complicated because it was based on erroneous assumptions. Copernicus model was simpler and some of his claims were correct.<span />
Boyle's law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is 4l , the pressure is 720 kpa (kilopascals). What is the pressure when the volume is 10l ?
