TheShamGod

On a good night, the front row of the Twisted Sister concert would surely result in a 120 dB sound level. A Walkman produces 100 dB. How many Walkmans would be needed to produce the same intensity as the front row of the Twisted Sister concert?

Which of the following situations is a result of resonance? a. Hydro wires "hum" as a mild breeze blows over them. b. A child pushes herself on a swing by moving her legs back and forth appropriately. c. Windows in your house rattle as a large truck drive...

How long will it take, in minutes, for a transformer to transfer 2.3 X 10^6 J of energy from a 120-V circuit to a 345-V circuit with a current of 1.5 A? PLEASE HELP

A guitar string vibrates at 400 Hz and has a length of 0.8 m. Find the new frequency if a. the string is lengthened to 0.9 m. b. the string is replaced with another string, the density of which is greater by a factor of two. c. The tension in the string i...

A 12V car battery puts out 5400J of energy each second. How many coulombs of charge does this battery put out in one second?

Not sure but I think it is prmary

so it would be 2.3 x 10^6 = 345 V x 1.5 amp x time? then where would the 120 V come in