# Yahoo奇摩 網頁搜尋

廣告

1. ### 2條Astronomy mc

...proportional constant. For the satellite: 90^2 = kR^3 ---------- (1) For the moon : T^2 = k(Rm)^3 ------------- (2) where T is the period of...

2. ### newton's first law

...speed can remain unchanged. One of the examples is the Moon moving around the Earth. The Earth is always...

3. ### AL physics mc

...'s 3rd Law, let d be the distance between th earth centre and moon centre hence, (28/1)^2 = (d/6.6R)^3 where 28 days is...

4. ### 嫦娥一號's english name is what?????

...quot; =嫦娥一號&#39;s &quot;Chang&#39;e Flying to the Moon &quot; is a popular Chinese mythology about a lady Chang&#39;e who flew to the Moon after ...

5. ### Physics: force and motion

...acceleration due to gravity) hence, s = u^2/2g A lower value of g on the moon indicates a larger value for s (height reached) than on earth...

6. ### 地球為什麼會自轉 。why does the earth rotate?（５點）

...an apparent movement of the Sun with respect to the stars at a rate of about 1°/day (or a Sun or Moon diameter every 12 hours) eastward. Because of this motion, on average it...

7. ### Wave Motion I :Reflection of L

1. The answer is option A.The moon only reflects light from the sun. 2. Since incident angle = reflection angle...

8. ### 黑洞是冷的還是熱的？

... of a degree above absolute zero (i.e. 10^-5 K). A black hole about the mass of the Moon has a temperature of 2.7 K Since black holes ...

9. ### 有關waves

...係會比大氣層absorb?點解microwave可以由earth send 去 moon ? A: In theory, almost all frequencis...within the radio frequency range, waves of frequency below about 10 MHz normally cannot penetrate the ionosphere...

10. ### gravitation (urgent)

... the pole, the object is NOT performing any circular motion about the earth's centre and hence NO centripetal force is ...