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erastova [34]
3 years ago
6

If a circle was flattened by pushing down on it, it would most likely form into the shape of an(1) ___ which has(2)___focal poin

ts.
1.
a) oblonga
b) polygonan
c) ellipse

2.

a) one
b) two
c) three
Physics
2 answers:
worty [1.4K]3 years ago
5 0
C. Eclispe

B. 2
plz rate comment and thank :3
Bess [88]3 years ago
5 0

Answer: If a circle was flattened by pushing down on it, it would most likely form into the shape of an <u><em>ellipse </em></u>which has <u><em>two </em></u>focal points.

Explanation:

An ellipse is defined as the enclosed curve with two focal points.Sum of the Distance of any point on the curve from the two focal point remains constant.For example: An orbit of the earth is elliptical shape.

So, when we flattened circle we will obtain an ellipse with 2 focal points.

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Calculate the vapor pressure for a mist of spherical water droplets of radius 3.70×10−8m surrounded by water vapor at 298 K. The
poizon [28]

Answer:

The vapor pressure for a mist is P= 25.92\ Torr

Explanation:

From the question we are given that

        The radius is  r = 3.70 *10^{-8} m

        The temperature is T  = 298K

       The vapor pressure of water P_o = 25.2\ Torr

      The density of water is  \rho = 998 kg.m^{-3}

      The surface tension of water is \sigma  = 71.99 m N \cdot m^{-1}

Generally the equation of that is mathematically represented as

                            ln (\frac{P}{P_0} )  = \frac{2 \sigma M}{r \rho RT}

 Where  P is the vapor pressure for mist

               R is the  ideal gas constant = 8.31

      making P the subject in the formula

    P = e^ {\frac{2 \sigma M}{r \rho RT}} * P_0

        = e^{\frac{2 *(0.07199)(0.018)}{(3.70*10^{-8})(998)(8.31)(298)} } * 25.2

        P= 25.92Torr

               

4 0
3 years ago
A block slides down a rough ramp with a 30-degree incline as shown.
Studentka2010 [4]

Answer: The first one

Explanation: My best guess is in the pic attached. Hope this helps.

6 0
3 years ago
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A spherical mass M is held fixed in deep space, well away from the earth's gravitational pull. A second mass m is released from
Ivahew [28]

Answer:

256 ×a0

Explanation:

I have added an attachment because I am not sure the phrase that negates brainly word why I couldn't submit the answer directly.

View the explanation from attachment 3 followed by 2 and then 1

8 0
4 years ago
Explain how thermal conductivity occurs in poor conductor materials​
DIA [1.3K]

Answer:

• As heat is applied to one end of this material, atoms in the hotter region gain vibràtory energy at a maximum amplitude. They transfer it on to their neighboring atoms and heat is transfered along this material in form of vibràtory energy.

Explanation:

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3 years ago
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A loaf of bread has a mass of 2000g and a volume of 500 cm3. what is the density of the bread
Yuki888 [10]

Answer:

4g/cm^3

Explanation:

density = mass / volume

            = 2000 / 500

            = 4g/cm^3

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