Ahad_hadi 6月28日 英语(美国) @Verd80In economics, the nominal value of something is its current price; the real value of something, however, is its relative price over time. Both can be used to talk about the value of not only money, but also your wages, share prices and other thing...
(a) Explain what is meant by(l) total internal reflection.(b) Fig. 7.1 shows a ray of light, travelling in air, incident on a glass prism.(c) The speed of light in air is 3.0 × 10^8m/s. Its speed in the glass is 2.0 *Calculate the refractive index of the glass. 相关知识点...
这里meant 是mean 的被动语态。例(1)：主动语态： “Forthrightness” means what?被动语态： What is meant by “forthrightness”?例(2)：主动语态： Rita writes a letter.被动语态： A letter is written by Rita.例(3)：主动语态： 一辆车撞死了行人 被动语态： 行人被一辆车撞死...
(b)State what is meant by the terms(i) element,(substance that) cannot be split up/ broken down into (two or more) simpler substances by chemical means1...OR(substance) made of atoms with the same atomic number/ number of protons/ proton number.on number... [1](ii) compound,(two...
(a) (i) What is meant by the term enthalpy change of hydration, △H_1°_(2)=30°(ii) Write an equation that represents the AHayd of the Mg2+ ion.(iii) Suggest a reason why AHfy a of the Mg2+ ion is greater than AHyd of the Ca2+ ion.(iv) Suggest why it is impossible to...
百度试题 题目4. What is meant by the term "cohesion" in the study of texts? What "cohesion" is different from the term "coherence"相关知识点: 试题来源: 解析反馈 收藏
结果1 题目(c) What is meant by the term unsaturated hydrocarbon?unsaturated hydrocarbon 相关知识点: 试题来源: 解析 (contains) double bond/ triple bond/ multiple bond(s)/not all bonds are single(contains) carbon and hydrogen only 反馈 收藏 ...
A. Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channel B. Stations remaining off the air to safeguard proprietary information C. Two three-minute silent periods,at 15 and 45 minutes after the hour,that provide a transmitt...
(i) Explain what is meant by an ideal gas.[2](ii)Given po= atmospheric pressure Pm = pressure due to the mercury column T= temperature of the trapped gas n = number of moles of the trapped gas A = cross-sectional area of the tube Show that (P , D ) × 0.1 9 0= nRT[1](i...
aIt is necessary to define what is meant by diagnosis or troubleshooting because the termsare used differently in the literature. Sometimes diagnosis refers only to the process from identification of the symptom to the determinationof the fault. In other cases, especially when onespeaks about trouble...