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Calculate the volume of helium needed in a hot air balloon to lift at least 100 kg of load.

Density of He = 0.179 kg/m³, density of air = 1.29 kg/m³

(Answer: 90 m³)

To solve the problem, which of the following equation/s can be used? Check as many that best applies to the solution.

Q= mL
Ορ=m/V
O EF=F,-W1-W2 = 0
O F1 _ F2
A2
A1
O AL= «L0AT
O AV1=A2V2
F=ma
O EF = F6+W1-w2 = 0
O E=F/q
V2
W =
%3D
As = [d
Op-
T
F
P=
A

Fp=P fluidgV submerged
O Q= mcAT
O P= pgh
dU = dQ - dW or AU= Q- W
P2+pgh2+pvź =P1+pgh1+
e = 1-
Tn
1 |9192|
F =
4 TEO
ÞEDA = Ienc

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