Agas occupies a volume of 0.2l at 25 kpa. what volume will the gas occupy at 2.5kpa

Boyle's Law: P₁V₁ = P₂V₂

So (25 kpa)(0.21) = (2.5 kpa) V₂

(25 kpa × 0.21)/ 2.5 kpa = 2.1

2.1 = V₂

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.