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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Computing depreciation, net book value, and gain or loss on asset sale lynch company owns and operates a delivery van that originally cost $46,400. lynch has recorded straight-line depreciation on the van for four years, calculated assuming a $5,000 expected salvage value at the end of its estimated six-year useful life. depreciation was last recorded at the end of the fourth year, at which time lynch disposes of this van. compute the net bookvalue of the van on the disposal date.

Identify the management, organization, and technology factors responsible for slow adoption rates of internal corporate social networks. when a company decides to launch a social networking program the management, all need to be on board with the launch. from the ceo down to the shift or assistant manager everyone needs to know its coming and be excited. the organization of such a launch needs to be mapped out, and training provided for the new systems. within the company, they need to make sure the technology at hand (computers, tablets, and company phones), are all compatible with the system. when a company launches a new system, and the find that the employees are not adopting it, they need to investigate the reasons. is the management at all level's onboard? did we organize the launch properly? do we have the right technology for the system? things can goeither way but if

Afinancial institution, the thriftem bank, is in the process of formulating its loan policy for the next quarter. a total of $12 million is allocated for that purpose. being a full-service facility, the bank is obligated to grant loans to different clientele. the following table provides the types of loans, the interest rate charged by the bank, and the possibility of bad debt as estimated from past experience. type of loaninterest rateprobability of bad debtpersonal.140.10car.130.07home.1 20.03farm.125.05commercial.100.02 bad debts are assumed unrecoverable and hence produce no interest revenue either. competition with other financial institutions in the area requires that the bank allocate at least 40% of the total funds to farm and commercial loans. to assist the housing industry in the region, home loans must equal at least 50% of the personal, car, and home loans. the bank also has a stated policy specifying that the overall ratio for bad debts on all loans may not exceed .04. formulate this problem as a linear program. define your variables clearly and write all the constraints explaining the significance of each.