On january 15, 2000, enterprise a loans $6,000 to enterprise b and $17,000 to enterprise c. enterprise b repays enterprise a $7,000 on january 15, 2002 and this money is reinvested at a 5% annual effective rate. enterprise c repays enterprise a $22,500 on january 15, 2004. what is the annual yield received by enterprise a over the four-year interval. compare it to the annual effective interest rates paid by enterprises b and c

A) yield for company A: 8.79

B) effective rate on the loan:

B = 8.01%

C = 7.26%

Explanation:

A)

enterprise B interest

7000 - 6000              = 1, 000

proceed from B repayment deposit at 5%

7000 x 1.05^2 -7,000 =     717,5‬

enterprise C interest

22,500 - 17,000          = 5,500

           total return         7, 217.5

principal 17,000 + 6,000 = 23,000

we need to solve for the rate of a principal of 23,000 which yield 7,217.5 interest

r = 0.087905069

B) from the formula above we se each enterprise principal, amount and time:

effective rate for B:

0.08012345

effective rate for C

0.072589149

if kj of heat is transferred o 1200 g liquid water at 36'c, what would the new temperature of the water be? (he specific heat capacity of liquid water is 4.186 j/g''c)

a. 15'c

b.100'c

c.51'c

d.36'c

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