天同

Ls

回覆: 1

2016-10-10 3:53 am

Consider a set up with a power supply(dc voltage) and a photocell (metal plate + collector) and an ammeter. Frequency of light is constant.?

[匿名]

回覆: 1

2016-10-09 9:35 pm

80ml的水空氣在10分鐘溫度的變化(每一分鐘)?

[匿名]

回覆: 1

2016-10-09 2:09 pm

第16題和第17題?

Ls

回覆: 1

2016-10-09 7:23 am

why cant metal be used in braggs law(electrons interference?)?

Ls

回覆: 1

2016-10-08 3:50 pm

Stationary wave confusion?

[匿名]

回覆: 1

2016-10-05 5:07 am

物理科題目Rotation求解?

[匿名]

回覆: 1

2016-10-03 3:26 pm

物理科題目1 求解?

[匿名]

回覆: 1

2016-10-02 3:34 am

Physics question?

S.S.

回覆: 1

2016-10-02 1:51 am

Derivative of a vector?

Ls

回覆: 1

2016-09-25 1:54 pm

Why wont the water wave undergo a phase change of pi when propagate to a fixed wall.?

[匿名]

回覆: 1

2016-09-22 4:12 pm

Radium 2~:Ra has a half-life of about 3.6 days (a) Given 1 gram, how much will stìll be present after 1 day? (b) After 1 year?

Ls

回覆: 1

2016-09-17 1:19 pm

Electrostatic confused concept?

Ls

回覆: 1

2016-09-17 7:35 am

Circuit question!!?

[匿名]

回覆: 1

2016-09-14 10:21 am

力學問題求解(物理)?

Ls

回覆: 1

2016-09-11 8:34 am

Circuit and potential difference?

Ls

回覆: 1

2016-09-10 8:28 am

Electric potential energy please help?

Ls

回覆: 1

2016-09-09 2:00 pm

Van de Graff generator?

Dan

回覆: 2

2016-08-21 3:01 am

物理:為什麼這個力N可以被忽略?

[匿名]

回覆: 1

2016-08-05 5:47 am

請問1.280比重的電瓶液20公升等於幾公斤?

[匿名]

回覆: 1

2016-08-07 6:07 am

如果一架列車以光速運行 車上的女孩在裡面跑步 那女孩會否超越光速？

[匿名]

回覆: 1

2016-08-06 2:22 pm

magnetic circuit?

Ls

回覆: 1

2016-08-05 7:14 am

Magnetism question plz help?

Ls

回覆: 1

2016-08-05 6:27 am

Question about solenoid.(concept)?

[匿名]

回覆: 1

2016-08-03 1:10 pm

RC cirucit?

允傑

回覆: 2

2016-08-01 6:24 am

電磁鐵如何帶動馬達?

允傑

回覆: 2

2016-08-01 6:42 am

電磁鐵為何有磁力???

允傑

回覆: 2

2016-08-01 6:02 am

如何做出強而有力的電磁鐵?

Ls

回覆: 1

2016-07-30 12:16 pm

Voltage and charge question?

Ls

回覆: 1

2016-07-30 6:38 am

Electrostatic concept plz help?

[匿名]

回覆: 1

2016-07-27 2:22 pm

Thévenin’s Theorem?

Dan

回覆: 2

2016-06-18 6:47 am

一道電路問題求解 請教各位?

PING FAI

回覆: 2

2016-06-20 12:35 am

拿一包15kg金象米走75m要用多少功?

Dan

回覆: 3

2016-06-13 1:48 pm

物理 力學分解力的問題?

Ls

回覆: 1

2016-06-10 10:21 am

strange magnetic flux question?

Ls

回覆: 1

2016-06-06 1:19 pm

wave motion problem,plz help?

[匿名]

回覆: 3

2016-06-05 12:41 pm

音速是多少公里一小時?

[匿名]

回覆: 1

2016-06-04 1:42 pm

想請問大家~~~~在右圖中，容器底面積20平方公分，內裝高10公分的水，今投入一以線懸吊之鐵球，鐵球質量160公克，密度8公克∕立方公分，當鐵球完全沒入水中，但不與容器底部接觸時，容器底面所承受水的壓力為何？(圖放不上來抱歉拉)?

Ls

回覆: 1

2016-05-31 3:09 pm

electromagnetic concept plz help confused?

[匿名]

回覆: 3

2016-05-19 11:53 am

為什麼燈罩需要一個開口頂端?

PING FAI

回覆: 2

2016-05-10 9:09 am

為何加速1倍要2倍作功? I know the mathematical explanation in w=0.5mv^2, but I do not know the physical explanation.?

Ls

回覆: 1

2016-05-11 10:55 am

electromagnetic induction I don't understand?

Fan

回覆: 1

2016-05-07 3:25 pm

減低1度室溫, 需用多少能源, 有沒有算式可以計算?

ERIC CHUNG

回覆: 1

2016-05-04 6:53 pm

在NMR中，為何當外加射頻場的頻率與原子核自旋進動的頻率相同的時候，射頻場的能量才能夠有效地被原子核吸收，為能級躍遷提供助力，而其他頻率則不能令使能級躍遷?

Peter

回覆: 2

2016-05-03 8:35 am

火箭最高速度是多少？

Ls

回覆: 1

2016-04-30 2:09 pm

plz help me again(phy) follow up?

Ls

回覆: 1

2016-04-30 4:11 am

please teach me how to prove (phy)?

Ls

回覆: 1

2016-04-24 9:36 am

two electrostatic questions, plz help, I'm so confused?

羅庚

回覆: 1

2016-04-19 10:40 am

Entropy---------- rate of change?

Ls

回覆: 1

2016-04-17 12:47 pm

wave question phy plz help?

[匿名]

回覆: 2

2016-04-12 9:45 am

水密度g/cm^3 and kg/m^3 and g/m^3換算及換算過程?