Answer:
Number 2 is HDPE, or High-Density Polyethylene. It is most commonly found in plastic bags, oil and detergent bottles, and toys. It is one of the simplest polymers to recycle. It is broken down into flakes, decontaminated and then reused for pipes, flower pots or reused as (non-food) bottles.
Answer:
6 m²
Explanation:
application of fluid pressure according to Pascal's principle for the two pistons is given as:

Where P₁ is the pressure at the input and P₂ is the pressure at the output.
But P₁ = F₁ / A₁ and P₂ = F₂ / A₂
Where F₁ and F₂ are the forces applied at the input and output respectively and A₁ and A₂ are the area of the input pipe and output pipe respectively
Since, 

But A₁ = 0.2 m², F₁ = 250 N, F₂ = 7500 N. Substituting values to get:

Therefore, the area of the pipe below the load is 6 m²
Answer:
I=0.3636
Explanation:
See the attached picture for explanation.
Number of drill blows per minute. hope this helps !!
JUST PUT THE BRICK ON THE OTHER