ineedhelp2285
24.07.2021 •
Physics
Một vật dao động điều hòa dọc theo trục Ox (O là vị trí cân bằng) có phương trình: x = 2cos(2πt + π/2) (cm). Hỏi sau thời gian bao lâu thì vật đi được quãng đường 99 cm kể từ thời điểm ban đầu t = 0 ?
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Ответ:
a cast is something that holds a item in place weather it be a iron sword or a broken arm. a cast is made by hollowing out the inside and placing your item in it.
Explanation: