posted by ashley .
The average power dissipated in a stereo speaker is 56 W. Assuming that the speaker can be treated as a 4.0- resistance, find the peak value of the ac voltage applied to the speaker.
Already answered. Try to understand what I wrote before. You still are writing - for ohms, apparenbtly
Except for the change from 56 to 54 W, refer to
If the current is composed of Na+ ions (q = +e), how many such ions flow in 0.7 s?