Can someone with this physics it stressing me out

There's no benefit from being stressed out, my lord.

               x = 8 cos(3t + π/3)

When t=0,        x = 8 cos(π/3)

Position  =  8 cos(π/3) = 8 (0.5)  =  4 .

Speed = first derivative of  8 cos(3t + π/3) =

                 - (8) (3) sin(3t + π/3)  =  - 24 sin(π/3)  =  -20.78

Acceleration = second derivative of    8 cos(3t + π/3)  

                   = first derivative of    - 24 sin(3t + π/3) 

                   =        - (24) (3) cos(3t + π/3)

                   =        -72 cos(π/3)  =  -36  .

The period of the motion is the period of   cos(3t + π/3) .
That's the same as the period of  cos(3t) .
When is the first time after (3t=0) when (3t=2π) ?   It's  t = 2π/3 .
The period is   2π/3  .

The amplitude of the motion is the amplitude of     8 cos() .
The amplitude of the cosine is 1 .
The amplitude of     8cos(...)    is  8 .

Words cannot express my boundless gratitude
for the generous gift of your 5 points, my lord.
A full 1 point per answer !
The warm cloudy water and green bread-crust are delicious too.

A. absolute mark as brainliest

“when two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges. when an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. this process is called subduction. “ i found this on google i hope it