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# (II) If the base of an insect's leg has a radius of about

ISBN: 9780130606204 3

## Solution for problem 61P Chapter 10

Physics: Principles with Applications | 6th Edition

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Problem 61P

(II) If the base of an insect's leg has a radius of about 3.0 X10-5 m and the insect's mass is 0.016 g, would you expect the six-legged insect to remain on top of the water? Why or why not?

Step-by-Step Solution:

Solution 61P:

We have to determine whether the surface tension of water would be able to balance the weight of the insect’s or not.

Step 1 of 3</p>

Concept:

For a body to be in equilibrium, the net force acting on the body should be zero.

Surface tension is the force acting per unit length on the water surface, such that water surface behaves as an elastic membrane.

Step 2 of 3</p>

Figure below shows the free body diagram of the insect.

Radius of the leg of insect

Surface tension of water

Mass of the insect

is the angle between the vertical and surface tension of water.

Step 2 of 2

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