1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kolezko [41]
3 years ago
11

A storm front moves in and Rachel and Pam notice the column of mercury in the barometer rises only to 736 mm. Assume the density

of mercury is 13, 000 kg/m 3
(a) What is the change in air pressure?
(b) What if their barometer was filled with water instead of mercury, how high does the column rise? Density of water = 1000 kg/m
Physics
1 answer:
Orlov [11]3 years ago
6 0

Answer:

a

 \Delta  P =   7558.6 \  Pa

b

 h_1 =  10  \  m

Explanation:

From the question we are told that

   The position of the column of mercury in the barometer is  h = 736 \  mm = 0.76 \  m\

   The density of mercury is  \rho =  13,000 \  kg / m^3

Generally the  pressure of the atmosphere at that column is mathematically represented as  

         P  =  \rho  *  g * h

=>      P  =13 000   *  9.8  * 0.736

=>      P  = 93766.4 \  Pa

Generally the atmospheric pressure at sea level (Generally the pressure before the change in level of the mercury column)  is  P_a =  101325  \  Pa

Generally the change in air pressure  is mathematically represented as

      \Delta  P =  P_a - P

=>   \Delta  P =    101325  - 93766.4

=>   \Delta  P =   7558.6 \  Pa

Generally the height which the column will rise to is mathematically evaluated as  

         h_1 =  \frac{P}{ \rho_w *  g  }

Here \rho_w is the density of water with value  \rho_w =  1000 \ kg/m^3

So

       h_1 =  \frac{ 93766.4}{  1000 *  9.8   }

=>   h_1 =  10  \  m

You might be interested in
Different asteroids reflect different percentages of the light falling on them. This is due to the fact that they have different
Georgia [21]

Due to the Composition, different asteroids reflect different percentages of the light falling on them.

What are Asteroids:

  • Asteroids are small, rocky objects that orbit the Sun. Although asteroids orbit the Sun like planets, they are much smaller than planets.
  • Asteroids are generally made up of rocky material, metals and their size are large in  comparison to comets. Asteroid belt is found between Jupiter and Mars.

Composition of Asteroids:

  • Most of the asteroids in the Main Belt are made of rock and stone.
  • The remaining asteroids are made up of a mix of these, along with carbon-rich materials. Some of the more distant asteroids tend to contain more ices.

We determine reflectivity of asteroids by comparing the brightness of light in the visible spectrum to the brightness of light in the infrared spectrum. The light shining from asteroids is reflected sunlight.

Hence we can say that,

Due to the Composition, different asteroids reflect different percentages of the light falling on them.

Learn more about Asteroids here:

<u>brainly.com/question/13047582</u>

<u />

#SPJ4

4 0
1 year ago
Which is a legacy of the enlightenment?
stealth61 [152]
Education that result in understanding and the spread knowledge physics
7 0
3 years ago
Read 2 more answers
What is the formula for lithium and chlorine?
siniylev [52]
LiCl, because lithium (Li) has one positively charged ion (1+), and
chloride (Cl) has one negatively charged ion (1-), so they
cancel each other out.
7 0
3 years ago
Read 2 more answers
Which of the following is required for work to be done on an object?
ad-work [718]
I think that in order for work to be done, the object must move in the direction of the force and move over a distance.
7 0
3 years ago
A horizontal wire is hung from the ceiling of a room by two massless strings. The wire has a length of 0.11 m and a mass of 0.01
AnnZ [28]

Answer:

Explanation:

The magnetic force acting horizontally will deflect the wire by angle φ from the vertical

Let T be the tension

T cosφ = mg

Tsinφ = Magnetic force

Tsinφ = BiL  , where B is magnetic field , i is current and L is length of wire

Dividing

Tanφ = BiL / mg

= .055 x 29 x .11 / .010 x 9.8

= 1.79

φ = 61° .

Tension T = mg / cosφ

= .01 x 9.8 / cos61

= .2 N .

5 0
3 years ago
Other questions:
  • WHICH OF THE FOLLOWING IS A HAZARD OF GLOBALIZATION???
    6·2 answers
  • An electromagnetic wave is transporting energy in the negative y direction. At one point and one instant the magnetic field is i
    12·1 answer
  • james wants to lower the pitch coming from an electronic sound generator. how would he achieve that? a. he should increase the a
    13·2 answers
  • 80 km por hora em metros por segundo
    15·1 answer
  • A tennis ball of mass 57 g travels with velocity &lt; 74, 0, 0 &gt; m/s toward a wall. After bouncing off the wall, the tennis b
    5·1 answer
  • For an object to appear blue, what must the object do to blue light waves?
    15·1 answer
  • An object is held at a distance of 20cm from a concave lens of focal length 80cm. What is the
    12·1 answer
  • Name two types of mechanical weathering in NewBedford
    7·1 answer
  • A honeybee is in flight between a flower and its hive. Which of the following statements is true?
    14·1 answer
  • Aluminium has a work function of 4. 08 ev. (a) find the cutoff wavelength and cutoff frequency for the photoelectric effect?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!