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问题 选择题

如图为一单摆做简谐运动的图象，在0.1～0.2s这段时间内（   ）

A．物体的回复力逐渐减小

B．物体的速度逐渐减小

C．物体的位移逐渐减小

D．物体的势能逐渐减小

答案

ACD

单摆在0.1～0.2s这段时间内，正在从正向最大位移相平衡位置运动，所以物体的回复力逐渐减小，故A正确

速度逐渐增大，故B错误

位移逐渐减小，故C正确

势能逐渐减小，故D正确

故选ACD

问答题

(b)(i) State the value added tax (VAT) treatment of the disposal of self-used fixed assets. Your answer should deal with assets which were bought both before and after 1 January 2009; (2 marks) (ii) State the value added tax (VAT) treatment of the disposal of used articles (other than those used as fixed assets) and used cars; (2 marks) (iii) The following transactions all occurred in the month of August 2009. All figures are stated including value added tax (VAT). (1) Company D sold a used machine for RMB 250,000, which had been bought in January 2008 for RMB 200,000. (2) Company E (a small-scale VAT taxpayer) sold a used machine for RMB 180,000, which had been bought in October 2005 for RMB 200,000. (3) Company F sold a used machine for RMB 150,000, which had been bought in January 2009 for RMB 120,000. (4) Company G (a small-scale VAT taxpayer) sold a used machine for RMB 150,000, which had been bought in January 2009 for RMB 120,000. (5) Company H sold a used car for RMB 150,000, which had been bought in January 2009 for RMB 120,000.Required:In the case of each of the sales (1) to (5), calculate the value added tax (VAT) payable.Note: unless otherwise stated all the companies are general VAT taxpayers. (5 marks)
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填空题

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