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# Tutor profile: Apoorv S.

Inactive
Apoorv S.
Pursuing M.sc Hons Economics and B.E Hons Mechanical from BITS Pilani
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## Questions

### Subject:Mechanical Engineering

TutorMe
Question:

The initial temperature of 150g of ethanol was 22 oC. What will be the final temperature of the ethanol if 3240 J was needed to raise the temperature of the ethanol? (Specific heat capacity of ethanol is 2.44 J c-1 g-1) Given: q = 3240 J m = 150 g Cq = 2.44 T1 = 22˚C Find T2

Inactive
Apoorv S.

Use the Specific Heat Capacity equation: q = mCp∆T = mCp (T2 – T1) = 30.85 ˚C ~ 30.9 ˚C

### Subject:C++ Programming

TutorMe
Question:

What will be the output of the program below #include void fun(int *a, int *b) { int *t; t=a; a=b; b=t; } main() { int a=2; int b=3; fun(&a,&b); printf(%d, %d",a, b); } options: a) 3, 2 b) compilation error c) error at run time d) 2, 3 e) None of the above

Inactive
Apoorv S.

2,3. The simple swapping algorithm.

### Subject:Microeconomics

TutorMe
Question:

There is a debate about whether sterile hypodermic needles should be passed out free of charge in cities with high drug use. Proponents argue that doing so will reduce the incidence of diseases, such as HIV/AIDS, that are often spread by needle sharing among drug users. Opponents believe that doing so will encourage more drug use by reducing the risks of this behavior. As an economist asked to assess the policy, you must know the following: (i) how responsive the spread of diseases like HIV/AIDS is to the price of sterile needles and (ii) how responsive drug use is to the price of sterile needles. Assuming that you know these two things, use the concepts of price elasticity of demand for sterile needles and the cross-price elasticity between drugs and sterile needles to answer the following questions. a. In what circumstances do you believe this is a beneficial policy? b. In what circumstances do you believe this is a bad policy?

Inactive
Apoorv S.

a. Handing out free needles lowers the price of needles to zero. First consider the demand for needles. The higher the price elasticity of demand for sterile needles, the greater the increase in the quantity of sterile needles demanded in response to a decrease in the price. And the greater the increase in the quantity of sterile needles demanded, the lower the spread of diseases like HIV/AIDS. Now consider the demand for drugs. Drugs and sterile needles are gross gross complements: as the price of sterile needles falls, the demand for drugs increases. This implies that the cross-price elasticity of demand between drugs and sterile needles is negative. The less negative (the closer to zero) the cross-price elasticity of demand between drugs and sterile needles, the less Practice Questions and Answers from Lesson I-7: Elasticity 10 responsive is the demand for drugs to the price of sterile needles. So the policy would be beneficial if the price elasticity of demand for sterile needles is high (elastic) and the cross-price elasticity of demand between drugs and sterile needles is negative and low (close to zero, that is, weakly complementary). b. Similar reasoning as in part a implies that the policy would be a bad idea if the price elasticity of demand for sterile needles is low (inelastic) and the cross-price elasticity of demand between drugs and sterile needles is high and negative (strongly complementary).

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