Find the inversion temperature (in K) of van der Waals gas with constants a = 0.14 Pa∙m⁶/mol² b = 3.9∙10⁻⁵m³/mol. Write the answer in decimal representation rounding it to 2 significant figures. Thanks for all your help!

1.33m/s

Explanation:

Given parameters:

M1  = 20kg

V1  = 2m/s

V2 = 0m/s

M2  = 10kg

Unknown:

V  = ?

Solution:

As with all systems, the momentum must be conserved and it implies that the starting and ending momentum be the same.

  M1 V1  +  M2 V2  = V (M1 + M2)

M1 is the mass of the big red fish

V1 is the velocity of the big red fish

V2 is the velocity of the green fish

M2 is the mass of the green fish

V is the velocity after swallowing

           (20 x 2) + (10 x 0)  = V (20 + 10)

                      40  = 30V

                      V  = 1.33m/s