medium · MCAT chem-phys
A spherical balloon is filled with 4.0 m^3 of helium (ρ_He = 0.18 kg/m^3). If the density of the surrounding air is 1.28 kg/m^3, what is the buoyant force acting on the balloon? (Use g = 10 m/s^2)
- 44.0 N
- 7.2 N
- 51.2 N
- 12.8 N
Sign up free to see the explanation and track your rank →
More MCAT chem-phys practice
- An infrared (IR) spectrum of an unknown organic compound sho… — Which functional group is
- What is the molar mass of Calcium Carbonate (CaCO_3)? (Atomic masses: Ca = 40, C = 12, O =
- How many moles of NH_3 are theoretically produced?
- What is the correct coefficient for O_2?
- What term describes the molecule with internal symmetry despite having chiral centers?
- Which mechanism is occurring?
- Which reactant is the limiting reagent?
- Which term describes the final state where no net heat flow occurs?