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Tuyển tập các đề thi học sinh giỏi vật lý lớp 8 ( có đáp án chi tiết)

TUYỂN TẬP CÁC ĐỀ THI HỌC SINH GIỎI VẬT LÝ LỚP 8 THCS
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TUYỂN TẬP CÁC ĐỀ THI HỌC SINH GIỎI VẬT LÝ LỚP 8 THCS
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Giám khảo chú ý:
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bài làm cụ thể của HS để cho điểm.
- Điểm các phần, các câu không làm tròn. Điểm toàn là tổng điểm của các câu
thành phần.
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TUYỂN TẬP CÁC ĐỀ THI HỌC SINH GIỎI VẬT LÝ LỚP 8 THCS
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VËn tèc trung b×nh cña ngêi thø hai lµ:
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0,b05-
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Nªn ngêi thø hai ®Õn ®Ých B tríc.
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-15/
-15/
-15/
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Vậy quả A rỗng.
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m
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TUYỂN TẬP CÁC ĐỀ THI HỌC SINH GIỎI VẬT LÝ LỚP 8 THCS
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