#16

(4%) Problem 16: A suspension bridge oscillates with an effective force constant of 0.95 x 108 N/m. Forbes, David - david.forbes@doane.edu @theexpertta.com - tracking id: 9N69-72-B9-45-AB7A-40021. In accordance with Expert TA's Terms of Service, copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. 4 50% Part (a) How much energy, in joules, is needed to make it oscillate with an amplitude of 0.105 m? Grade Summary E = 1 Deductions 0% Potential 100% sinO cos() tan( 7 8 9 Submissions cotan() asin() acos B 5 6 Attempts remaining: 999 (0% per attempt) atanO acotan() sinhO 2 3 detailed view cosho tanh() cotanh() + 0 EN Degrees O Radians VO BACKSPACE Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. 4 50% Part (b) If soldiers march across the bridge with a cadence equal to the bridge's natural frequency and impart 0.85 x 10*J of energy to the bridge's oscillation each second, how long, in seconds, does it take for the bridge's oscillations to go from an amplitude of 0.105 m to 0.495 m