Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 280 for 20 , then travels at constant speed for another 30 .

Explanation:

The complete question is

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 280m/s2 for 20 ms, then travels at constant speed for another 30 ms .

During this total time of 50 ms , 1/20 of a second, how far does the tongue reach?

Express your answer to two significant figures and include the appropriate units.

The movement of the tongue is divided in two different motions, with acceleration and without acceleration.

The accelerated movement is defined as

Where and , because if 50ms equals 1/20 seconds, then 20ms equals 0.02 seconds.

So, the distance is

And the speed is

This speed is the same for the constant movement, which actually won't change.

Now, the non accelerated movement is defined as

Where

and

So, the distance in the constant movement is

Therefore, the total distance traveled by the tongue is

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

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nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation: