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a_sh-v [17]
2 years ago
15

After a long day you go home in your friend's really fancy sports car which has a sun-roof on the top and a spoiler (a little wi

ng-like surface which is above the trunk and the rear wheels.) When you open the sun-roof on the top of the car your ears start to feel a bit funny. This happens because:
A. The air pressure inside the car drops suddenly because the air pressure on top of the car is more than atmospheric.
B. The air pressure inside the car drops suddenly because the air pressure on top of the car is less than atmospheric.
C. The air pressure inside the car increases suddenly because the air pressure on top of the car is more than atmospheri
D. The air pressure inside the car increases suddenly because the air pressure on top of the car is less than atmospheric.
Physics
1 answer:
mixas84 [53]2 years ago
7 0

Answer:

B: air pressure inside the car drops suddenly

Explanation:

Air in the car drops suddenly because the roof region has lowered pressure than the atmospheric pressure usually varying with the speed of the car

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The curved section of a speedway is a circular arc having a radius of 190 m. this curve is properly banked for racecars moving a
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The banking angle of the curved part of the speedway is determined as 32⁰.

<h3>Banking angle of the curved road</h3>

The banking angle of the curved part of the speedway is calculated as follows;

V(max) = √(rg tanθ)

where;

  • r is radius of the path
  • g is acceleration due to gravity

V² = rg tanθ

tanθ = V²/rg

tanθ = (34²)/(190 x 9.8)

tanθ = 0.62

θ = arc tan(0.62)

θ = 31.8

θ ≈ 32⁰

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9.3 g/cm³

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Rounding to two significant figures, the density is 9.3 g/cm³.

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