Plz help and if u can explain how u answer it :)

- A 10.0 kg block lies on a frictionless horizontal table. To the right of the block is a frictionless pulley. A 25.0kg mass is hanging off the table connected to the 10.0 kg mass and pulley via some string.

a) Find the acceleration of the system.

b) Find the tension in the string.

(a) Can a particle moving with instantaneous speed 8.00 m/s on a path with radius of curvature4.00 m have an acceleration ofmagnitude 20.00m/s²?

If the answer is yes, explain how it can happen; if the answer isno, explain why not.

(b) Can it have an acceleration of magnitude 13.00 m/s²?

If the answer is yes, explain how it can happen; if the answer isno, explain why not.

can you explain how they get 321 N for the final answer from 3.99 N..??

Please explain how to get 2 theta, theta, sin theta, and expwavelength from the data in this table. I want to know how tofigure out how to get the data. I don't necessarily need the wholetable to be worked out.

Please help! And, thanks in advance.