Abicycle racer is going downhill at 10.4 m/s when, to his horror, one of his 2.34 kg wheels comes off when he is 68.0 m above the foot of the hill. we can model the wheel as a thin-walled cylinder 85.0 cm in diameter and neglect the small mass of the spokes. how fast is the wheel moving when it reaches the foot of the hill if it rolled without slipping all the way down?

Explanation:

Given data:

downhill velocity = 10.4 m/s

weight of wheel is 2.34 kg

distance from foot of hill is 68 m

cylinder diameter is 85 cm

from conservation of energy principle we have following relation

we know that moment of inertia

                                                                 = 0.99  m^4

SO WE HAVE

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: