# Yahoo奇摩 網頁搜尋

廣告

1. ### First order ODE

First write the force equation For the first 500m F=mg-k1v, take downward as positive After the first 500m F=mg-k2v As F=ma, a= dv/dt, we have mdv/dt=mg-k1v dv/dt=g-(k1/m)v Let v=Ae^(-bt)f(t), where f(t) is a function of t...

2. ### (20分)AL phy wave questions...關於interference數 order 的問題!答得好有20分

...gt;>"1.1=4(1.2)入/1"來計個wavelength??(因為有180 phase change,so min. order =n),同埋...佢果到講fifth order ..點解個n佢代4??? x = nλD/a 這...

3. ### Optic problem

In order to form a final image at infinity, the image formed by the objective must be at...

4. ### about wave

In order to move a cork floating on water, a student proposes two methods...

5. ### AL PHY~Diffraction grating EXP

...can be reduced. The disadvantage is: The second order spectrum is wider than the first order spectrum, in which the center...

6. ### Physics - Interference Pattern

In order to form a constructive interference, the path difference between waves from the two...

7. ### heat capacity Question

In order to heat up the water from 20 C to 25 C in an indoor swimming pool...

8. ### F.7phy report 急~

... is larger (nearly double) than that of the first order , the % of reading error is smaller. Disadvantage...

9. ### AL PHY 02 mc 3

...1/605.78x10^-9 wavelengths = 1, 650,764 wavelengths i.e. of order of million. You could refer to the following web-page http://en.wikipedia...

10. ### Thermal physics

NO as air is a fluid......the convection of air would bring the heat from your body quicky.air is a poor insulator...and goose can trap the air ,in order to prevent convection. therefore.. wearing clothers is better..

廣告