Worusu NOW
Write the letter of the definition next to the matching word as you work through
the lesson. You may use the glossary to help you.
strong nuclear force
A. the spontaneous discharge of energy from
an unstable nucleus
radioactivity
B. the time required for half of a sample of
a radioisotope to decay
weak nuclear force
C. the force that binds neutrons and protons
together in the nuclei of atoms
half-life
D. an atom with an unstable nucleus that will
eventually go through radioactive decay
radioisotope
E. the force that is responsible for the type of
radioactive decay known as beta decay

1. the materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. she knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. she also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four (4) days.2. at what point should resin be reordered? a. 0 kilograms remainingb. 50 kilograms remainingc. 200 kilograms remainingd. 400 kilograms remaininge. 500 kilograms remaining3. if order size was 1,000 kilograms of resin, what would be the length of an order cycle? a. 0.05 daysb. 4 daysc. 16 daysd. 20 dayse. 50 days4. if the order size was 1,000 kilograms of resin, what would be the average inventory level? a. 50 kilogramsb. 200 kilogramsc. 500 kilogramsd. 800 kilogramse. 1,000 kilograms5. if the order size was 1,000 kilograms of resin, what would be the daily total inventory costs, excluding the cost of the resin? a. $5b. $10c. $20d. $25e. $40