Can I please get help solving these problems please. I am struggling to understand how to do them.

1. A mass in the diagram undergoes simple harmonic motion. Use the diagram for the following ques- tions (a) through (d) and choose between the same 5 options for each part. Options: (i) Maximum and Positive (ii) Maximum and Negative (iii) Zero (iv) Less than maximum and positive (v) Less than maximum and negative (a) When the mass reaches point x = +A its instantaneous velocity is? (b) When the mass reaches point x = 0 its instantaneous velocity is? (c) When the mass reaches point x = +A its instantaneous acceleration is? (d) When the mass reaches point x = 0 its instantaneOus acceleration is? 2. A 0.500 kg mass is attached to a spring and oscillates with a period of T = 1.50 s. How much mass must be added to the system in order to change the period to 2 s? 3. The average daily tem- perature in the town of Bend, OR is plotted with blue dots in the graph. The time t = 0 days cor- responds to April 12th 2013, and the last meas- urement was taken Feb- ruary 22nd 2021. The red line represents a trendline. Mean Daily Temperature in Bend Mean Temperature vs Time Temperature {Fahrenheit} 1000 1500 ' 2000 25013 3000 T-me (days) (a) Is the average daily temperature in Bend, Oregon an example of simple harmonic oscillation? Use words, diagrams, equations, etc... to support your answer. (b)Appr0ximately, what is the average daily temperature's period of oscillation? (c) Apprtiximately, what is the amplitude of the average daily temperature's oscillation? (d)Use the red trendline to construct an equation that approximately describes the oscillation of the temperature as a function of time only, i.e. T(t) =