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a) Calculate the buoyant force (in N) on a 2.30 L helium balloon. I got .029...

a) Calculate the buoyant force (in N) on a 2.30 L helium balloon.

I got .029 N upward for part a but can't seem to figure out part b.

b) Given the mass of the rubber in the balloon is 2.00 g, what is the net vertical force (in N) on the balloon if it is let go? You can neglect the volume of the rubber.

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Answer #1

I calculated the part a again the answer is 0.0291N

The part can be calculated by knowing the force downwards due to the weight of the helium and the weight of the rubber

The buoyncy force is upwards and the force due to mass of the helium and the rubber is downwards

The net force is difference between them

The density of helium is 0.179 kg/m³a) Given volvme v a 3L bbroyanc Posce ill be egval to op ci dis plared mg density ai γ )-29kg/m 3 0.002964 # 0,00 246 x 9,81 bq Fb CI Fba - Foce o ballom 0-179 X 2-3x10X 9,81 0.0040387 N 0.0146-Fnet = o. oaq-(0.01962 to-004 o 324)

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