Need help with these questions, thanks

I am trying to figure this out and having problems solving it.

Q#1

Calculate the mass in grams for an object whose weight is 33.0 N

Total of mass in grams?

Q#2

Calculate the acceleration of an object whose mass is 5.26 tonne if an unbalanced force of 285 kN is pushing this object.

Answer of acceleration?

Q#3

a 30 kg block with an initial velocity of 10m/s due west slides 15m along a rough level floor and comes to rest. It takes 3 seconds to stop. The stopping force on the block is??

Q#4

A hockey puck is set in motion across a level frozen pond. If the frictional forces are neglected, the force required to keep the puck sliding at a constant velocity is

A> 0 newtons

B> equal to the weight of the puck

C> the weight of the puck divided by its mass

D> the mass of the puck multiplied by 9.81 m/s^2

E> none of the above.

THANKS for your help

PLEASE show all work so I can figure it out.

Jo