A 150kg person stands on a compression spring with spring constant 10000n/m and nominal length of 0.50.what is the total length of the

Total length is 0.65 meters

Explanation:

We have,

Mass of a person is 150 kg

The spring constant of the spring is 10000 N/m

The nominal length of the spring is 0.5.

It is required to find the total length of the spring.

Due to the mass of person, net force acting on the spring is :

x is compression in the spring

g is acceleration due to gravity

So, the total length of the spring is the sum of length of compressed spring and its nominal length i.e. 0.5 + 0.15 = 0.65 meters

divide the right side by the left side

0.024÷1.2=0.02 for example

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: