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GaryK [48]
3 years ago
15

Is a pressure force a body force or surface force?

Physics
2 answers:
Olin [163]3 years ago
5 0

Answer:

the answer is surface force

hope this helps u stay safe

Explanation:

svetoff [14.1K]3 years ago
3 0
It is a surface force
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Suppose that a ball is released from the window of a train that is moving with constant velocity.  The path of the ball, as obse
barxatty [35]

True, the path of the ball, as observed from the train window, will be a horizontal straight line.

An object projected from a certain height has a parabolic path when observed from a fixed point.

However, if the reference point is moving at the same velocity as the object, the path of the object's motion appears to be a straight line.

When the ball is released from the window of the train, it will move at the same constant velocity as the train, and the path of the ball's motion observed from the train window will be a straight line.

Thus, we can conclude that the given statement is true. The path of the ball, as observed from the train window, will be a horizontal straight line.

Learn more about path of motion of objects here: brainly.com/question/82610

7 0
2 years ago
The graph shows projected changes in the populations of the world.
malfutka [58]

Answer: C. Africa

Explanation:

The data given on the graph shows that:

Asia will grow from around 1,300 million to 5,000 million in 2050 which is an increase of:

= 5,000 /1,300 = 3.84 times

Europe will decrease over that period.

Africa will go from around 300 million to 2,000 million which is an increase of:

= 2,000 / 300

= 6.67 times

Mexico

, Central America, Caribbean Islands:

= 900 / 120

= 7.5 times

United States,  Canada, and Greenland:

= 400/120

= 3.33

Oceania:

= 50 / 13

= 3.85

From the options give, Africa will see the greatest increase at 6.67 times its population in 1950.

3 0
3 years ago
Read 2 more answers
What happens to atoms as you move across the periods on the periodic table?
Alex_Xolod [135]
As you move across a period, the atomic mass increases because the atomic number also increases. When the atomic number increases, this means that there are more protons and neutrons that add to the atomic mass of an atom
3 0
3 years ago
Which two factors determine the amount of work done?
nignag [31]
Distance and force.
You need to know how much force was needed and how far it went to calculate how much work was done. The answer is C.
5 0
3 years ago
Read 2 more answers
A tightly wound toroid of inner radius 1.2 cm and outer radius 2.4 cm has 960 turns of wire and carries a current of 2.5 A.
OLEGan [10]

Answer:

a

  B  = 0.0533 \ T

b

  B  =  0.04 \ T

Explanation:

From the question we are told that

   The inner radius is r = 1.2 \ cm = 0.012 \ m

   The  outer radius is  r_o  =  2.4 \ cm  =  \frac{2.4}{100} =  0.024 \ m

    The nu umber of turns is  N  =  960

    The current it is carrying is  I =  2. 5 A

Generally the magnetic field is mathematically represented as

      B  =  \frac{\mu_o  *  N* I  }{2 * \pi * r  }

Where  \mu_o is the permeability of free space with a constant value    

            \mu  =   4\pi * 10^{-7} N/A^2

And the given distance where the magnetic field is felt is  r =  0.9 cm  =  0.009 m

Now  substituting values

     B  =  \frac{  4\pi * 10^{-7}  *  960* 2.5  }{2 * 3.142 * 0.009  }

    B  = 0.0533 \ T

    Fro the second question the distance of the position considered from the center is  r =  1.2 cm  =  0.012 m

So the  magnetic field is  

        B  =  \frac{  4\pi * 10^{-7}  *  960* 2.5  }{2 * 3.142 * 0.012  }

        B  =  0.04 \ T

6 0
3 years ago
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