**Last question i can't get.**

Thanks Pickslides for helping understand these questions.

The last one i need answered is really hard i don't understand it, hope you can help.

**Question 1**

**a) **State the amplitude (A) the period (T) and the frequency (F) for the periodic function - 120sin(100 pi *t)V.*

**b) **Through how many degrees does a wheel rotate in 10 ms if its angular velocity is 8 rad/s.

**c) **Sketch one cycle of the given function showing the values of each variable where the curve crosses the axis. V=50sin(4.2*10^2*t)*