The following transactions and events affected the accounts of Heritage Ltd for the current year (ignore GST).

1. On 3 January of the current year, Heritage Ltd paid \($550\) 000 in legal fees for the successful defence of a patent infringement suit.

2. A patent with a useful life of 10 years was purchased for cash of \($450\) 000 on 6 January last year.

3. On 31 January of the current year, Heritage Ltd purchased a copper mine for \($25\) 000 000. Of the total purchase price, \($18\) 000 000 was assigned to the copper mine and the remaining amount was assigned to mining machinery. The mine has a residual value of \($3\) 000 000 and contains an estimated 15 000 000 tonnes of copper ore. The mining machinery is expected to be useful for the entire life of the mine and will be abandoned when the copper deposits are depleted. During the current year, 2 500 000 tonnes of copper ore were mined.

4. On 4 February, a valuable copyright held by the company and internally generated was valued independently at \($80\) 000 — \($35\) 000 of this had been previously included in the asset ‘Development Costs’. It is expected that the copyright has a useful life of 6 years.

Required

(a) Prepare journal entries to record the events occurring in the current year.

(b) Prepare journal entries to record amortisation and depreciation for the current year. Record to the nearest whole month.