fun times
This page lists questions and answers that were posted by visitors named fun times.
Questions
The following questions were asked by visitors named fun times.
In a controlled breeding program at Melbourne Zoo, the population (P) of koalas at t years is modeled by P = P_0 * 10^(kt). Given P_0 = 20 and k = 0.3: a. calculate the number of koalas after 2 years b. determine when the population will be equal to 1000
7 years ago
The decay of uranium is modelled by D = D_0 * 2^(-kt). If it takes 6 years for the mass of uranium to halve, find the percentage remaining after: a. 2 years
7 years ago
Star A is four times as far away as star B, but they have the same luminosity. Which appears brighter from Earth. and by how much?
7 years ago
ly = light years Stars P and Q have the same luminosity, but P is 30 ly from Earth and Q is 40 ly from Earth. What is the ratio of their brightness as viewed from Earth?
7 years ago
Answers
The following answers were posted by visitors named fun times.