13. ball of clay with mass 0.100 kg directly dropped from 1.50 m above the ground. (a) what is the
speed of the clay ball just before it hits the ground? (b) if the clay ball stick to the floor after hitting
the ground in 0.00250 s, calculate the force on the clay by the floor. (ignore the gravity) (c) what is
the force created on the ground by the clay ball? (ignore the gravity) (d) why is the force of gravity
not that important for part b and c? (e) calculate the impulse on the ball (f) calculate the impulse on
the ground.

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:

battery with hi vtge high val resist in series