Radioactive element americium
The radioactive element americium-241 has a half-life of 432 years. suppose we start with a 50-g mass of americium-241.
How much will be left after 229 years? compute the answer to three significant digits.
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Recall that general solution of the critically damped unforced harmonic oscillator (or mass-spring system) is y(t)=e^(-rt)(k1t+k2) where r, k1 and k2 are constant. Describe that the mass can pass through the equilbrium position of y=0 at most once
Write down an integral which represents the arc length of the curve on the given interval. Don't evaluate the integral..
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The radioactive element americium-241 has a half-life of 432 years. suppose we start with a 50-g mass of americium-241. How much will be left after 229 years? compute the answer to three significant digits.
If $6,000 is placed in account with annual interest rate of 4%, how long will it take the amount to double if the interest is compounded annualy? Round your answer to two decimal places.
The bacteria in the certain culture double every 6.5 hours. The culture has 7,500 bacteria at the start. How many bacteria will the culture contain after 4 hours?
An investor bought a 6% (coupon rate) bond at 90. Compute the current yield to 2 decimal places?
You're considering refinancing your mortgage. Your current loan is at the 7% with 14 years left and was negotiated one year ago with $2,000 closing costs. The new loan would be 5.5% for 15 years with closing costs of $1,500. Discuss how you would
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