document.write( "Question 1041982: The voltage E in an electrical circuit is given by E = 7.6 cos 140πt, where t is time measured in seconds. Find the period. \n" ); document.write( "
Algebra.Com's Answer #656884 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The voltage E in an electrical circuit is given by E = 7.6 cos 140πt, where t is time measured in seconds. Find the period. \n" ); document.write( "----- \n" ); document.write( "P = (2pi)/b \n" ); document.write( "----- \n" ); document.write( "Period = (2pi)/(140pi) = 1/70 of a second \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |