Goodie morni...Please solve it...Urgently required......

1.	Goodie morni...Please solve it...Urgently required......
Answer» $\huge\boxed{\underline{\mathcal{\red{A} \green{N } \pink{S } \orange{W } \blue{E } \pink{R }}}}$ $\text{[math]}$ Volume of plastic balloon= 15 m3 Mass of empty balloon = 7.15 kg Density of hydrogen=0.09 kgm-3 Density of AIR= 1.3 kgm 3 (i) Mass of hydrogen in the balloon= Volume of balloon X Density of hydrogen Mass of hydrogen in the balloon= (15 x 0.09)kg = 1.35kg (ii) Mass of hydrogen and balloon Mass of empty balloon + Mass of hydrogen in the balloon Mass of hydrogen balloon = [7.15+ 1.35) = kg = 8.5 kg (iii) GIVEN mass of equipment= x Total mass of hydrogen, balloon and equipment = (8.5+ x) kg (iv) WEIGHT of air displaced by the balloon = upthrust = Volume of balloon x density of air x g Mass of air displaced= Volume of balloon x density of air = 15 x 1.3 = 19.5 kg (v) Using the law of floatation, Mass of air displaced 3 Total mass of hydrogen, balloon and equipment or, 19.5 = 8.5 + x or, x=11 kg Thus, mass of the equipment *11 kg*

Answer»

$\huge\boxed{\underline{\mathcal{\red{A} \green{N } \pink{S } \orange{W } \blue{E } \pink{R }}}}$

$\text{[math]}$

Volume of plastic balloon= 15 m3

Mass of empty balloon = 7.15 kg Density of hydrogen=0.09 kgm-3

Density of AIR= 1.3 kgm 3

(i) Mass of hydrogen in the balloon= Volume of balloon X Density of hydrogen Mass of hydrogen in the balloon=

(15 x 0.09)kg

= 1.35kg

(ii) Mass of hydrogen and balloon Mass of empty balloon + Mass of hydrogen in the balloon

Mass of hydrogen balloon = [7.15+ 1.35) =

kg = 8.5 kg

(iii) GIVEN mass of equipment= x Total mass of hydrogen, balloon and equipment

= (8.5+ x) kg

(iv) WEIGHT of air displaced by the

balloon = upthrust = Volume of balloon x density of air x g

Mass of air displaced= Volume of balloon x density of air

= 15 x 1.3 = 19.5 kg

(v) Using the law of floatation,

Mass of air displaced 3 Total mass of hydrogen, balloon and equipment or, 19.5 = 8.5 + x