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

This is Physics 20 (grade 11)- MOD 8- LESSON 1- Properties of Mechanical Waves

Question 1 Not yet Use the following diagram to answer the following questions. answered (Scale: 1 small square = 10 cm) Marked out of 9.00 Flag question [B tm- G A O THIThe points where "crests" occur are labelled and The points where "troughs" occur are labelled and Which point is "one wavelength" away from point "C"? Answer --> Which point is HALF of a wavelength away from point "B"? Answer --> What is the wavelength of this wave? Answer --> centimeters. What is the wave's amplitude? Answer --> centimeters What is this wave's velocity, if the frequency is 40 Hz? Answer --> meters per secondQuestion 2 A wave generator in a water tank produces waves at a frequency Not yet answered of 5.4 Hz. A student takes a quick measurement and finds the Marked out of space between the 3rd and 8th troughs to be 7.4 cm. 1.00 Calculate the Speed of the Wave in units of cm/second (round Flag question to 1 decimal place) Answer: Question 3 Radio telescopes receive radio waves from distant stars. Not yet answered Astronomers observing a particular star note that the wavelength Marked out of of the incoming radio waves is 25 cm. Assuming the radio 1.00 waves are travelling at the speed of light (3.00 x 108 m/s), Flag calculate the frequency of the incoming radio waves. question Answer in units of Hz, using scientific notation (3 significant figures)