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physic 難題 43
發問:
Please advise me the value of kx?? I couldnt calc the correct answer is kx = -0.98, please provide me step by step! Thanks! Let A = 9487, B=6.32x10^3 Acos(kx) + Bsin(kx)=0 -1.5 = tan(kx) kx=????
最佳解答:
kx is about -56.33 度? 你係唔係計到依個? 但因為你個答案係用radian present 唔係度數 度數轉radian係 度數除180 x pie
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