21. A small object is placed at right angles to the axis of a fixed concave mirror so as to form (i) a real (ii) a virtual image, twice as long as the
object. if the radius of curvature of the mirror is 40cm, what is the
distance between the two images?
Ans: 60cm
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chat and in ito

If a team of three workers, each making the u.s. federal minimum wage, produced these 12 rugs, what would the total labor cost be? don't forget that these workers would be working overtime.

Beck company had the following accounts and balances at the end of the year. what is net income or net loss for the year? cash $ 74 comma 000 accounts payable $12,000 common stock $21,000 dividends $12,000 operating expenses $ 13 comma 000 accounts receivable $ 49 comma 000 inventory $ 47 comma 000 longminusterm notes payable $33,000 revenues $ 91 comma 000 salaries payable $ 30 comma 000

In early january, burger mania acquired 100% of the common stock of the crispy taco restaurant chain. the purchase price allocation included the following items: $4 million, patent; $3 million, trademark considered to have an indefinite useful life; and $5 million, goodwill. burger mania's policy is to amortize intangible assets with finite useful lives using the straight-line method, no residual value, and a five-year service life. what is the total amount of amortization expense that would appear in burger mania's income statement for the first year ended december 31 related to these items?