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hey guys i got one for ya.

help a bra out

Object A has a volume of 1.0x10^-5 and the density a density of 1300, the tension to which the string object A is attached is 0.0098 N

calculate the buoyant force on object A

calculate the density of the liquid

bra

volume is in meters cubed.

density is in kg/m^3

Both wrong, it's 'brah' learn your slang people.

lol, im sorry kyouzou,forgive me?

me and my friends were trying to figure this shiz out and we couldnt so save our lives.

Well, for the circuit problems you can't calculate the exact values of current but can compare them,

1. A1 = highest current
2. A2 = A3 = same current reading since they are connected in parallel.

While for the buoyancy problem, considering that you dipped the object in a liquid completely by using the string,

B+T = mg => B + (9.8 x 10^-3) = (1 x 10^-5) x (1300) x 9.8
=> B = 117.6 x 10^-3

where, B = buoyancy force; m = mass of object; g =9.8 m/s^2; T = tension

As for the density,
If you remember the dude, Archimedes,

Buoyancy force = weight of fluid displaced

B = mg
Also, m = V * density

(117.6 x 10^-3) = (10^-5) x 9.8 x density
density = 1200 kg/m^3