5 (a) State what is meant by the specific heat capacity of a substance.[2](b) A student carries out an experiment to find the specific heat capacity of aluminium. He uses an electric heater and a thermometer, inserted into separate holes in an aluminium block.The following dat a are o...
has cross-sectional are a 1.3 × 10-5m2 and power 2.7 × 10-3W.The light has wavelength 570 nm.The light energy is absorbed by the metal and no light is reflected.(i) Show that a photon of this light has an energy of 3.5 × 10-19J.(ii) Calculate, for a time of 1.0 ...
What is the volume of an ideal gas at STP? What is meant by "ideal gas"? What is the model for an ideal gas? What is the equation of state for an ideal gas? What is the ideal gas equation? What are the properties of an ideal gas. What is the ideal gas law? What is the ide...
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How is it related to thrust ? (b) St... 02:51 Calculate the work required to be done to stop a car of 1500 kg moving... 05:29 What is meant by the power of an agent ? How is it related to the forc... 01:48 What is potential energy ? Give examples of bodies possessing ...
(a)Natural gas, which is mainly methane, is a fossil fuel.(i) What is meant by the term fuel?[1](ii) Name two other fossil fuels.[2](iii) Name a solid fuel which is not a fossil fuel.[1] 相关知识点: 试题来源: 解析 (a)(i) substance/ material/ compound/element/mixture (...
What is meant by insulin resistance? Why is circulation dynamic? Describe the effect causing an increase in the amount of calcium ions that are bound to troponin and decrease in the amount of ATP molecules in the muscle? Explore our homework questions and answers library ...
4 (a) State what is meant by the term polarisation when applied to a wave.[1](b)Explain why only transverse waves can be polarised.[2](c)Some films released have enabled viewing in three dimensions (3D). This can be done using two superimposed polarised images on the screen. One of ...
(a) State what is meant by a ‘mixed sale’ and briefly explain the business tax (BT) and/or value added tax (VAT) treatment of mixed sales activities. (5 marks) 答案: 你可能感兴趣的试题 问答题 (a) 答案: 问答题 (a) Mr Zhang, a Chinese citizen, is a University professor. He ha...
the reader's unwillingness to make an effort to understand a report