On Earth, the air becomes less dense and loses pressure as it rises in height. There is a bad correlation between the two variables.
<h3>What is atmosphere?</h3>
The layers of gases that envelop a planet or other celestial body are its atmosphere. About 78% of the gases in the Earth's atmosphere are nitrogen, 21% are oxygen, and 1% are other gases.
<h3>What is air pressure?</h3>
Everything you touch is pressed upon by the weighty air that surrounds you. This pressure is referred to as air pressure or atmospheric pressure. It is the force that the air above a surface applies to it while gravity pulls the surface toward Earth. A barometer is frequently used to measure atmospheric pressure.
<h3>What is altitude?</h3>
Height above sea level is how altitude is defined. Air pressure and height are two different but related ideas. In fact, they are so closely related that many airplane altimeters base their altitude calculations on air pressure. And one can also do the opposite; mountain climbers can determine whether they need to bring an oxygen supply by forecasting the air pressure on a mountaintop with a known elevation.
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Answer:
the buoyant force on the chamber is F = 7000460 N
Explanation:
the buoyant force on the chamber is equal to the weight of the displaced volume of sea water due to the presence of the chamber.
Since the chamber is completely covered by water, it displaces a volume equal to its spherical volume
mass of water displaced = density of seawater * volume displaced
m= d * V , V = 4/3π* Rext³
the buoyant force is the weight of this volume of seawater
F = m * g = d * 4/3π* Rext³ * g
replacing values
F = 1025 kg/m³ * 4/3π * (5.5m)³ * 9.8m/s² = 7000460 N
Note:
when occupied the tension force on the cable is
T = F buoyant - F weight of chamber = 7000460 N - 87600 kg*9.8 m/s² = 6141980 N
They stay in place and vibrate.
As per Newton's II law we know that
rate of change in momentum is Net outside force on the object
now here we will have if net outside force will be zero
then we can say
so from above equation we can say
and hence we have
so the correct answer will be
<em>3.) in the absence of outside forces</em>
Answer:
vf = 6.724 m/s
Explanation:
Velocity: This an be defined as the rate of change of displacement. Velocity is a vector quantity, because it can be represented both in magnitude and direction. The S.I unit of velocity is m/s.
From newton's equation of motion,
vf = vi + at ......................................... Equation 1
Where vf = final velocity, vi = initial velocity, a = acceleration, t = time.
Given: vi = 3.6 m/s, a = 0.71 m/s², t = 4.4 s.
Substitute into equation 1
vf = 3.6+0.71(4.4)
vf = 3.6+3.124
vf = 6.724 m/s
Hence, vf = 6.724 m/s
