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

This is Physics 20 (grade 11)- MOD 8- LESSON 2- Wave Reflection

Question 4 Draw the following three waves striking and reflecting from a Not yet answered boundary: Marked out of a) Wave incident at 43 3.00 b) Wave incident at 74 Flag question c) Wave incident at 190 Paragraph B I wr- Go eQuestion 5 A string is attached to a wall and a single pulse is sent (moving from left to right). Not yet answered Marked out of 3.00 Flag question a) Draw the resulting wave pulse that you would expect after the wave pulse strikes the boundary. (1 mark) b) Using clear Physics 20 language/vocabulary, EXPLAIN why the wave pulse you drew in "a" would occur. (2 marks) Paragraph B in