Physics, 29.07.2021 23:50 shawnamiller31412
1 con lắc lò xo có khối lượng m, độ cứng k=45N/m. Cho con lắc dao động điều hòa với biên độ A= 20cm thì a cực đại=18m/s2. Xác định khối lượng m
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1 con lắc lò xo có khối lượng m, độ cứng k=45N/m. Cho con lắc dao động điều hòa với biên độ A= 20cm...
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