Shelli is a student describing the resonance of a metal beam. She demonstrates that the sound dims when the beam is vibrated at a certain frequency. What does she most likely say in response to the dimming sound?
“This is not the natural frequency of the beam.”
“This is the natural frequency of the beam.”
“The decibels are increasing.”
“The amplitude is not increasing.”

d) he bring down boss tweed and tammany hall.

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

there were abundant sources of fuel nearby