Answer:
Acceleration will 7.5 times g = 7.5 g
Explanation:
Centripetal acceleration is given by a = v²/r.
The speed in m/s will be; (96.6 Km/h )÷ 3.6
= 26.83 m/s.
Centripetal force = v²/r
= 26.83²/9.80
= 73.454 m/s²
But; g = 9.8 m/s²
Therefore the acceleration in terms of g will be;
= 73.454/9.8
= 7.5 g
Acceleration is 7.5 g
Fluids are liquid or gases
different particles make up fluids and are constantly bouncing in a high random motion
By idea gas equation we can say
here P = pressure
V = volume
n = number of moles
R = Avagadro gas constant
T = temperature
So from above expression we can see that for constant number of moles we can say
So finally the pressure will be 279.1 kPa
The speed of sound in normal air is approximately
. In helium, instead, it is
. The mixture of gases mentioned in the problem is made of 97 % of helium and 3% of normal air, therefore the speed of sound in this mixture will be
So, the ratio between the speed of sound in this mixture of gases and in normal air is
The frequencies of the formants of the diver's voices are proportional to the speed of sound, therefore they will change by the same proportion as the speed of sound does. So, the frequencies will be 2.76 times higher than in normal air.