can you please help me with this assignment, please show all the work.

This is Physics 20 (grade 11)- MOD 8- LESSON 4- Resonating Air Columns

Question 1 A tuning fork vibrates at 470 Hz. The fork is held above a closed air column. The Not yet answered speed of sound is 336 m/s. Marked out of Calculate the LENGTH of the air column that will produce the SECOND 1.00 resonance. Flag question Answer in units of centimeters, rounded to one decimal place. Answer: Question 2 A tuning fork vibrating at 280 Hz produces the THIRD resonance position above an Not yet answered air column 1.5 m long. Marked out of Calculate the speed of sound in units of meters per second (round to one 1.00 decimal place). Flag question Answer:Question 3 The speed of sound is 340 m/s when a tuning fork produces the SECOND Not yet answered resonance position above a CLOSED air column 47.6 cm long. Marked out of Calculate the tuning fork's frequency, rounded to the nearest Hz. 1.00 Flag