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How do you use your calculator to evaluate log 25.65?
log 25.65 First of all there are two 'logarithm' functions on a calculator. They are shown by 'log', and 'ln'. 'Log' is the function of logarithms to base '10'. 'ln' is is the function of logarithms to the 'natural base' , which is 'e = 2.7818...;. However, in your question you quote 'log' , so it is assumed you are working to base '10'. On my calculator press ' clear' , then 'log' the enter '25.65' , then 'equals(-)'. The answer is '1.409087369.... ' NB My calculator is a 'Casio fx-83MS' ; a rather 'ancient machine'. Different calculator manufacturers will have a different function rountine. Read the instruction paper with your calculator.
If a Polar Bear runs at a speed of 83 ms how far will it travel in 10.0hrs?
I'm not sure what you mean by `83ms' but polar bears can't run at any speed for ten hours. They can run at up to about 25mph for short distances but they're big and well-insulated so they overheat quickly and can't maintain that sort of speed.
