1. A 1750 kg Ford Mustang Convertible and a 2222 kg Dodge Ram 4x4 truck were involved in a head on car crash. The Mustang initially moving at a velocity of 20 m/s rebounds off the truck with a
velocity of 12 m/s. After the collision, the Dodge Ram rebounds with a velocity of 5 m/s. What was
the velocity of the Dodge Ram before it collided with the Mustang?

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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:

the first, second, and fifth options

nah.   i'm just sleepy.