A study is done on the population of a certain fish species in a lake. Suppose that the population size P(t) after t years is given by the following exponentia function
P(1) - 510(0.72)

Find the initial population size.

Does the function represent
growth or decay?

By what percent does the population size change each year?

A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz