Homework Help for Mechanical Engineering

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A chemically reacting mixture is stored in a thin-walled
spherical container of radius r1  200 mm, and the exothermic reaction generates heat at a uniform, but temperature dependent volumetric rate of 

o exp(A/To), where 
o  5000 W/m3

A 75 K, and To is the mixture temperature in kelvins. The vessel is enclosed by an insulating material of outer radius r2, thermal conductivity k, and emissivity. The outer surface of the insulation experiences convection heat transfer and net radiation exchange with the adjoining air and large surroundings, respectively.

A sum of P1,000 is invested now and left for 8 years, at which time the principal is withdrawn. The interest has an accrued left for another 8 years. If the effective annual interest is 5%, what will be the withdrawn amount at the end of the 16th year?

If money is worth 8% compounded quarterly, compute the single payment amount factor for a period of 6 years.

If the single payment present worth factor for a period of 8 years is equal to 0.58201, compute the nearest value of the rate of interest for that period

If the single payment amount factor for a period of 5 years is 1.33822. What is the nearest value of the interest rate?

If a sum of money triples in a certain period of time at a given rate interest, compute the value of the single payment present worth factor

Find the discount if P2,000 is discounted for 6 months at 8% compounded quarterly

What is the difference of the amount 3 years from now for a 10% simple interest and 10% compound interest per year? (P5000 accumulated)

What is the nominal rate of interest compounded continuously for 8 years if the present worth factor is equal to 0.6187835?

If the effective rate is 24%, what nominal rate of interest is charged for a continuously compounded loan?

Compute the difference in the future amount of P500 compounded annually at nominal rate of 5% and if it is compounded continuously for 5 years at the same rate

If the nominal interest is 12% compounded continuously, compute the effective annual rate if interest.