# Yahoo奇摩 網頁搜尋

1. ### physics (urgent~)

...the difference is only whether it is large or little. (a) The girl comes down the slide faster and faster means that energy give out from change...

2. ### S.4 Phy

...this K.E. to P.E. 　　　　When the small stone comes down to a height of 533 m. the P.E. gained returns back to...

3. ### physics concept

....html y = (ut sin A) - ½ gt² y = max height before you come down u = initial velocity t = time from jumping to landing A = angle...

4. ### 外太空凍唔凍?

...same temperature, because conductivity of metal is higher. So all it comes down to whether you in direct contact with something or not. You don&#39;t &quot...

5. ### Phy ~ ~ please come

Of course the student is wrong. When the trolley moves down along the inclined plane at uniform speed, the downward component of the trolley&...

6. ### Urgent! Projectile motion

Let x be the required angles Horizontally, 2 = [6.8.cos(x)].t where t is the time of flight for the water in air t = 2/6.8cos(x) i.e. t = 1/3.4cos(x) Vertically, use s = ut + (1/2)at^2 with s = 0 m, u = 6.8.sin(x), a = -g(=-10 m/s^2), t = 1/3.4cos(x) hence, 0 = 6.8.sin(x)[1/3.4cos...

7. ### Does the ball pen work if we turn it upside down ?

... .. when put upside down , pressure difference occurs, the ink will flow down by gravity. some air will goes into the bottom of the tube( on top now =.=)...when the pressure comes balance..the ink stop flowing and hence the pen comes to no use anymore

8. ### Phy easy~

...a push, then the box will move ever so slightly and then gradually come to a halt. Since no description of the inclined..., the reader cannot assume the box would slow down gradually or quickly. One might even assume the box ...

9. ### Phy Qs. Need Help!!Urgent..pls help!

1. By v = u + at v = 0 + 10(12) Speed, v = 120 ms-1 The answer is D. more than 100 ms-1. 2. By s = ut + 1/2 at2 0 = 10t + 1/2 (-10)t2 t2 - 2t = 0 t = 2s or 0 (rejected) So, the answer is D. 2 seconds. 3. The answer is...

10. ### wave~~~

... particles are unstable in high level, so it will fall down again. During the falling process, potential energy changes to kinetic...

1. ### 相關詞

 coming down 意思