What is sharp image?
What is resultant force?
Explain them in Chinese or English.
Not Homework!
F4 physic!(lens and force)
2012-07-12 10:15 pm
回答 (1)
2012-07-13 12:28 am
✔ 最佳答案
Q: What is sharp image?A: A sharp image (影像) is one that has distinct boundary.
Q: What is resultant force?
A: A resultant force is the vector sum of all involved forces when both force magnitudes and directions are taken into account in the summation.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120712000051KK00400