Centre of Mass then axis of rotation and then moment of inertia. This was the toughest question for your level... happy to help ^_^. It was purely experimental question.
1. 408.4 J
The work done by a gas is given by:

where
p is the gas pressure
is the change in volume of the gas
In this problem,
(atmospheric pressure)
is the change in volume
So, the work done is

2. 10170 J
The amount of heat added to the water to completely boil it is equal to the latent heat of vaporization:

where
m is the mass of the water
is the specific latent heat of vaporization
The initial volume of water is

and the water density is

So the water mass is

So, the amount of heat added to the water is

I would say wait no come back stay here where u will be protected
Answer:
11. 5 N to the left.
12. 10 N to the right.
Explanation:
11. Determination of the net force.
Force in the left direction (Fₗ) = 10 N
Force in the right direction (Fᵣ) = 5 N
Net force (Fₙ) =?
The net force can be obtained as follow:
Fₙ = Fₗ – Fᵣ (Since the forces act in opposite direction)
Fₙ = 10 – 5
Fₙ = 5 N to left
Thus, the net force is 5 N to the left.
12. Determination of the net force.
Force in the right direction 1 (Fᵣ₁) = 5 N
Force in the right direction 2 (Fᵣ₂) = 5 N
Net force (Fₙ) =?
The net force can be obtained as follow:
Fₙ = Fᵣ₁ + Fᵣ₂ (Since the forces act in the same direction)
Fₙ = 5 + 5
Fₙ = 10 N to the right
Thus, the net force is 10 N to the right.
Answer:
object will remain in the motion if no external force acts on it for ex(roughness of surface,air resistance) according to inertia ,inertia is a that property of matter that continues its existing state either in rest or motio