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Lana71 [14]
3 years ago
7

Compare the atmospheric pressure of two places 500m and 2 km respectively above sea-level. Give reason for your answer.

Physics
1 answer:
Lera25 [3.4K]3 years ago
3 0

Answer:

Explanation:

The average pressure at mean sea-level (MSL) in the International Standard Atmosphere (ISA) is 1013.25 hPa, or 1 atmosphere (atm), or 29.92 inches of mercury. Pressure (p), mass (m), and the acceleration due to gravity (g), are related by P = F/A = (m*g)/A, where A is surface area.

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You perform an experiment with a long column of air and a tuning fork. The column of air is defined by a very long vertical plas
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Answer:

\lambda=4L=1.33m

v=343m/s

Explanation:

We have to take into account the expressions

f=\frac{2n+1}{4}\frac{v_s}{L}\\L=(2n+1)\frac{\lambda}{4}

if we assume that 256Hz is the fundamental frequency we have

f=\frac{1}{4}\frac{v_s}{L}\\\\L=\frac{1}{4}\frac{v_s}{f}=\frac{1}{4}\frac{343\frac{m}{s}}{256Hz}=0.33m

and for wavelength

\lambda=4L=1.33m

hope this helps!!

6 0
3 years ago
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How many joules of work are done against a truck when a force of 50 N pushes it 1 kilometer away
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Answer:

Work = 50,000 J

Explanation:

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Given that,

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At the _______________ point, the particles in an object have not kinetic energy
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The freezing point ..... :)
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What is the displacement of the particle in the time interval 7 seconds to 8 seconds? A. 0 meters B. 1.5 meters C. 3 meters D. 7
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Answer: B. 1.5 meters

Explanation:

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A plane flying horizontally at 377 m/s releases a package at an altitude of 15,770 m. How long will the package take to reach th
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Answer:

An object is called a horizontal projectile if it is launched from a certain height with some initial horizontal velocity only. The initial vertical velocity of such an object is zero. But as the object falls through the atmosphere the horizontal component of velocity remains constant but vertical component increases due to gravitational acceleration.

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