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nirvana33 [79]
3 years ago
9

Which of the following would have the strongest electric field? MULTIPLE CHOICE.

Physics
1 answer:
irina [24]3 years ago
7 0
Under a thundercloud or lightning bolt
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A force of 8800 N is exerted on a piston that has an area of 0.010 m^2. What is the force exerted by a second piston that has an
professor190 [17]

Explanation:

It is given that,

Force on piston, F₁ = 8800 N

Area, A_1=0.01\ m^2

Area, A_2=0.04\ m^2

Let F₂ is the force exerted on the second piston. Using Pascal's law as :

Pressure at piston 1 = Pressure at piston 2

\dfrac{F_1}{A_1}=\dfrac{F_2}{A_2}

F_2=\dfrac{F_1}{A_1}\times A_2

F_2=\dfrac{8800}{0.01}\times 0.04

F_2=35200\ N

So, the force exerted by a second piston is 35200 N. Hence, this is the required solution.

8 0
3 years ago
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A 2.0 kg book is lying on a 0.78 m -high table. You pick it up and place it on a bookshelf 2.1 m above the floor.Part ADuring th
zloy xaker [14]

Given data:

* The mass of the book is 2 kg.

* The initial height of the book is 0.78 m.

* The final height of the book is 2.1 m.

Solution:

(A). The work done by the gravity on the book is,

W=mg(h_f-h_i)

where m is the mass, g is the acceleration due to gravity, h_i is the initial height and h_f is the final height,

The work is done in moving the object in upward direction where as the gravitational force is acting in the down ward direction. Thus, the value g (acceleration due to gravity) is taken as negative in this case.

Substituting the known values,

\begin{gathered} W=2\times(-9.8)\times(2.1-0.78) \\ W=-19.6\times1.32 \\ W=-25.9\text{ J} \end{gathered}

Thus, the work done by the gravitational force is -25.9 J.

(B). The work done by the hand on the moving the book is,

\begin{gathered} W_1=-W \\ =25.9\text{ J} \end{gathered}

Thus, the work done by the hand on the book is 25.9 J.

7 0
11 months ago
3730 watts equals about how many horsepower<br><br>A.5<br>B.10<br>C.20<br>D.30
ikadub [295]
<span><span>3,730 W is equal to about 5 horsepower. (4.9982 hp)</span></span>
4 0
3 years ago
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An astronomical unit (A.U.) is 1 point A) a term for defining the luminosity of a star B) the average distance from the Earth to
Elenna [48]

Answer:

B) the average distance from the Earth to the Sun

Explanation:

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2 years ago
Consider a sample containing 1.70 mol of an ideal diatomic gas.
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I don't know

because I don't know

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