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connected by a light string that passes over a frictionless pulley. The blos orizontal surface and is connected to a spring of force constant k. The system is rest when the spring is unstretched. If the hanging block of mass m2 falls a distance h be rest, calculate the coefficient of kinetic friction between the block of mass mi and the su (Hint: Use the principle of conservation of energy) Question 4 (20pt) Airplane flight recorders are made to survive horrific crashes. In an im 41.0 kg box for the recorder is projected at a wall. The speed of the box to a halt in 6.5 ms collision with the wall. (a)What is the magnitude of the average acceleration exerted on the b the magnitude of the average force exerted on the box during the coll Solution 3] By energy conservation, Work done by all forces = change in KE m2 gh - u m1g h - 0.5kh^2 = 0 u = [m2 g - 0.5kh ]/(m1g) coefficient of friction u =Â Â [m2 g - 0.5kh ]/(m1g) .

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CHO HOH Classify this monosaccharide as D- or L- and as an aldose or a ketose. CH2OH aldose ?L ?D ? ketose Solution The compound is called aldose or ketose on the basis of functional group present ,if it is aldehyde then it\'s named as aldose and if it contains ketone group it is named as ketose The given compound clearly contains aldehyde group i . e -cho group so it is aldose . Now coming to L and D configuration The compound is called L when the Oh group on the alpha carbon is on the left side (alpha carbon is the carbon linked to the functional group, here aldehyde ). And the compound is called D when the Oh group is on the right side. Here in the compound the Oh group of the alpha carbon is on the left hand side so it is L configuration So overall it is L Aldose .

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Chapter 34, Problem 003 Incorrect In the figure, an isotropic point source of light S is positioned at distance d from a viewing screen A and the light intensity Ip at point P (level with S) is measured. Then a plane mirror M is placed behind S at distance 1.5d. By how much is Ip multiplied by the presence of the mirror? S P 1.5d d Solution intensity is inversely proportional to distance without mirror, intensity at P is Ip. with mirror: intensity due to light source=Ip distance of image from the source s will be 1.5*d+1.5*d=3*d so total distance from P=4*d intensity due to the reflected light in mirror will be then Ip/16 (due to inverse law) so total intensity=Ip+(Ip/16) =1.0625*Ip hence the intensity will be multiplied by 1.0625. .

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Components of Cash Calculate the total cash amount Bullock will report on its balance sheet. Solution BULLOCK COMPANY Components of Cash & cash equivalents to be reported in the Balance Sheet Amount $ Change for cash registers(currency & coins) 2500 Balance in petty cash 300 Prepaid Postage 250 Amount of deposit in checking account(bank balance) 9280 Amount of deposit in savings account(bank balance) 25000 Deposits in transit 1420 Checks recd. From customers not yt deposited in bank 430 IOU from Gerry Bullock, Company President 1000 NSF check written by Johnson Comppany 320 40500 Less:Checks sent by Bullock to suppliers, but not yet presented at bank for payment 670 39830 .

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Citradoria Corporation is a regular corporation that contributes $35,000 cash to qualified charitable organizations during 2014. The corporation has net operating income of $140,000, before deducting the contributions, and dividends received from domestic corporations (ownership in all corporations is less than 20 percent) in the amount of $20,000. a. What is the amount of Citradoria Corporation\'s allowable deduction for charitable contributions for the current year? Solution The amount of $ 35000 is fully deductible to the Citradoria Corporation for donation to Charitable Contribution for the current year Dividend is exempt Income 20000*20% = 4000 Deduction upto = 140000*30% = 42000 42000-4000 = $ 38000 is allowed therefore full deduction is allowed of $ 35000 .

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Comparing the following Operating Systems: Android (version 4.0 or later), Apple iOS x (6 or later), Windows (Windows 7 or 8) Solution Android: - A wide range of devices are available with various sizes, and manufactures. - Offers flexibility, personalisation - provides various widgets - cheap in price - wide collection of apps Apple iOS : - simple, consistent and reliable - secure - high price as compared to others - compatible to Apple iOS devices only Windows: - Underrated - simple and reliable - personalisable and innovative - less no:of apps available .

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Complete the below Trip class that could be used by a software for a travel agency to represent a general Trip package. The attributes and methods are described here: Solution Answer : public class Trip{ //The private members (We don not need to specifically declare them as private as they //will be saved as private by default ) int tripID; String location; double pricePerPerson; public Trip(int t, String loc, double ppp) { this.tripID = t; this.location = loc; this.pricePerPerson = ppp; } public void display() { System.out.println(\"\ The details of the trip are :\"); System.out.println(\" Trip ID : \"+tripID); System.out.println(\" Location of trip : \"+location); System.out.println(\"The price per person will be : $\"+pricePerPerson); } public double computeCost(int n) { return pricePerPerson*n; } } .

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