tailieunhanh - SAT II Physics (Gary Graff) Episode 2 Part 3

» Hành trang du học SAT là gì? Điểm thi SAT (Scholastic Assessment Test) là một trong những yêu cầu quan trọng được hầu hết các trường Cao đẳng, Đại học tại Mỹ sử dụng nhằm quyết định việc chấp nhận sinh viên theo học. Điểm SAT còn là căn cứ quan trọng để xét cấp học bổng. Vì vậy nếu bạn đang ước mơ du học Mỹ, hãy bắt đấu chuẩn bị cho kỳ thi SAT càng sớm càng tốt. Có thể nói, kỳ thi SAT là thước đo khá chính xác khả năng tư duy và khả năng học tập. | PHYSICS ItSI PHYSICS TEST Continued 23. An unmanned exploratory space vehicle is accelerated to .85c as it leaves the solar system. Years later a stationary extraterrestrial watches the vehicle pass and measures the length of the vehicle to be m. What was the length of the vehicle on earth before it began its trip A m B m C m D m E m 25. A force is applied to an object that is free to move. Which of the following statements is correct A The frictional force is larger than the applied force. B The frictional force is smaller than the applied force. C The weight of the object is larger than the applied force D The weight of the object is smaller than the applied force E All of these statements could be correct. 26. Two charged spheres are separated by 2 mm. Which of the following would yield the greatest attractive force A 1q and 4q B -1q and -4q C 2q and 2q D -2q and -2q E 2q and -2q 24. The diagrammatic representation of a heat engine above shows which of the following A Positive work B An adiabatic process C An isobaric process D An isochoric process E An isothermal process 27. An astronaut is standing on an asteroid when he accidentally drops a wrench. He observes that the gravitational acceleration on the asteroid is m s2. If he had thrown the wrench at an upward angle instead he would have found the gravitational acceleration on the asteroid to be A less than m s2. B toward him at m s2. C downward at m s2. D greater than m s2. E none of these. GO ON TO THE NEXT PAGE Peterson s . com PHYSICS TEST Continued PRACTICE IESI 1 28. The two-dimensional cube in the diagram above has charged objects placed at the corners as shown. An electron that is free to move is placed at the exact center of the cube. In which direction will the electron move A It will move toward A. B It will move toward B. C It will move toward C. D It will move toward D. E It will remain stationary. 29. A white disk and a black .

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