Yahoo奇摩 網頁搜尋

  1. ... the rms speed does increase with temperature, the speed would not be definitely increased. Since air molecules are matter and have...

  2. ...steam has lower specific heat capacity than liquid water does. 3. Definitely NO. Specific heat capacity of any substance is temperature dependent...

  3. ...not for small value of a). So, D is wrong. C is definitely wrong. B is wrong. Since for large value of a, @ is not...

  4. ... symptoms are all extremely common and do not mean that a person definitely has AIDS or HIV. In the later stages...

  5. ...very small power, equivalent to 10^-10 J. Thus 900 MeV is definitely a wrong figure. 900 MW(e) is similar to the power generated by...

  6. ...msitake on the given answers. 3. Option A is definitely not the correct answer. I would choose option B. There are...

  7. ...produce the three-dimensional results, therefore the three-dimensional film feeling definitely will have the relations with this eyeglasses. In fact in...

  8. 1. The orbit is an ellipse with the star at a focus. The semi-major axis of the ellipse = (3+5) AU = 8 AU For an elliptical orbit, the "closest distance" + "farthest distance" = 2 x semi-major axis Hence, 2 x 8 = 3 + s where s is the...

  9. I guess you do not understand the proof of the capacitance of spherical capacitor? You can assume there are two concentri spherical shells of radiii a and b. By using Gaussian surface wdrawing of radius r concentric with the two shells, q=(permittivity)EA=(permittivity...

  10. 1)Average speed,because the question said "during their period of travel" that means must not be displacement.Velocity is dealed with direction,but they dnt have the same direction ! 2)diffraction,because sound wave spread in multple of circle forms. 2007-03-30 06:40...