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masha68 [24]
3 years ago
12

When you look at yourself in a pocket mirror and then hold the mirror farther away, you see less of yourself more of yourself th

e same of yourself?
Physics
2 answers:
jolli1 [7]3 years ago
6 0
The same amount of yourself.
suter [353]3 years ago
5 0
The answer is : the same of yourself.  <span>When you look at yourself in a pocket mirror and then hold the mirror farther away, you see the same of yourself.</span>
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To stretch a certain nonlinear spring by an amount x requires a force F given by F = 40 x − 6 x 2 , where F is in Newtons and x
strojnjashka [21]

Answer:

64 J

Explanation:

The potential energy change of the spring ∆U = -W where W = work done by force, F.

Now W = ∫F.dx

So, ∆U = - ∫F.dx = - ∫Fdxcos180 (since the spring force and extension are in opposite directions)

∆U = - ∫-Fdx

=  ∫F.dx

Since F = 40x - 6x² and x moves from x = 0 to x = 2 m, we integrate thus, ∆U =  ∫₀²F.dx

=  ∫₀²(40x - 6x²).dx

=  ∫₀²(40xdx - 6x²dx)

=  ∫₀²(40x²/2 - 6x³/3)

=  ∫₀²(20x² - 2x³)

= [20x² - 2x³]₀²

= [(20(2)² - 2(2)³) - (20(0)² - 2(0)³)

= [(20(4) - 2(8)) - (0 - 0))

= [80 - 16 - 0]

= 64 J

5 0
3 years ago
Which is not a common property of ionic compounds?
Dmitriy789 [7]

Answer:

low melting point

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Explanation:

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Answer:

The solution and the graph are in the attached files below

Explanation:

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