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nadya68 [22]
3 years ago
15

+90

Physics
1 answer:
Taya2010 [7]3 years ago
4 0

goU 234 = 234.04095amu & mass of He4 = 4.002602 amu)

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What is the problem I cant help unless you have the problem.

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A converging lens of focal length 20 cm is placed in contact with a diverging lens of focal length 30 cm. The focal length of th
kramer

Answer:

The focal lenth (F) =+10.0cm

Explanation:

The formular for combined focal length (F) is given as;

1/f = 1/f_{1} + 1/f_{2}

In this  question,

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Plugging the values into the formuar above,

1/f = 1/20 + 1/(-30)

1/f = 0.05 - 0.033[tex]1/f = -0.017f = [tex]1/ -0.017

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Conceptual analysis

Hooke's law

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x the elongation of the spring (inch)

Data

The data given is incorrect because if we apply them the answer would be illogical.

The correct data are as follows:

F₁ =80 pounds

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