Pl help ASAP ILL GOVE POINTS If a weightlifter uses 850J of work on a set of weights and lifts them in 5 s what is his power output . Write the correct formula, substitution and final answer. PLZ HELP

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

How much energy is made when a pice of wood burns. how do you know

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.