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barxatty [35]
2 years ago
14

) A hot air balloon along with its cargo has a mass of 4.0 x 105 kg, and it holds 7.0 x 10 5 m3 of hot air. It is floating at a

constant height in air with a density of 1.29 kg/m3. What is the density of the hot air in the balloon
Physics
1 answer:
vitfil [10]2 years ago
8 0

Answer:

0.72 kg/m^3

Explanation:FIRST FIND UPTHRUST WHICH SHOULD BE EQUAL TO WEIGHT OF HOT BALLOON. SUBTRACT WEIGHT OF PERSONS TO GET WEIGHT WEIGHT OF HOT AIR . DIVIDE WEIGHT BY 9.8 TO GET MASS OF HOT AIR . SINCE VOLUME IS GIVEN FIND DENSITY . SEE ATTACHMENT

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Answer:

(a) Bus will traveled further a distance of 40 m

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(b) Now as the bus finally stops so final velocity v= 0 m/sec

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Acceleration a=-3.2m/sec^2

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What is the domain theory of ferromagnetism?
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