PLEASE ANSWER THE QUESTIONS WITH COMPLETE SOLUTIONS. THANKS!

1. A train moving at a speed of 40.0 m/s sounds its whistle, which has a frequency of 5.00 3 102 Hz. Determine the frequency heard by a stationary observer as the train approaches the observer. The ambient temperature is 24.0C. Twin jet engines on an airplane are producing an average sound frequency of 4100 Hz with a beat frequency of 0.500 Hz. What are their individual frequencies?

2.

Copy and complete the table. Amplitude Vertical Shift Period Frequency 1. f(x) = 4 sin sin (4x) + 2 2. f(x) = 2 sin sin (2x) + 1 3. f(x) = sin sin (2x) + 1 4. f(x) = sin (*) + 3 5. f(x) = sin +1