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Assume a safety stock level of 40 and an order quantity of 800, along with the cost, annual demand, average demand, and average lead time information listed previously (which is repeated below): Annual demand = 5000                                                 Holding cost = $4 / unit / year Working days per year = 200 days                               Order cost = $50 Average daily demand = 25 units                                 Average lead time = 6 days Assume that the standard deviation of demand during the lead time was equal to 40 and you wanted a service level of 84.13%. To the nearest integer (round up if the decimal is .5), how many units per year would be short (unavailable when needed)?  (Take calculations to as many as 6 decimal places.)

For the next three questions, consider the following information for an item for which you must develop an inventory policy.  Annual demand:                         4000 units                                  Order cost:                                  $50 per order                            Per unit holding cost / year:      25% of unit purchase price    Per unit purchase cost:              $10.00 if order quantity < 1000 units                                                       $ 9.50 if 1000 5000 units The only “candidate” order quantities that need to be considered for the best overall answer would be

If demand and lead time are variable, as long as we carry safety stock we’ll have a 100% service level.

It takes the planet Jupiter 12 years to orbit the Sun once. What is the average distance from Jupiter to the Sun? (The distance from the Earth to the Sun is 1.5 x 1011 m.)

A hypothetical planet has a mass of half that of the Earth and a radius of twice that of the Earth. What is the acceleration due to gravity on the planet in terms of g, the acceleration due to gravity at the Earth?

An object weighs 432 N on the surface of the Earth. The Earth has radius r. If the object is raised to a height of 3r above the Earth’s surface, what is its weight?

For a spacecraft going from the Earth toward the Sun, at what distance from the Earth will the gravitational forces due to the Sun and the Earth cancel? Earth’s mass: Me = 5.98 x 1024 kg the Sun’s mass: Ms = 1.99 x 1030 kg Earth-Sun distance: r = 1.50 x 1011 m

p2something.png An object side a distance d down and incline of height ∆y as shown.  If the coefficient of friction between the surface and the object is 0.250, determine the work done by friction. m = 5.00 kg, d = 9.00 m,  and ∆y = 3.00 m.

A worker pushes a 8.0 kg crate across a level surface with a force of 35.0 N directed at an angle of 25.0° downward from the horizontal. Determine the work done by gravity after the crate is pushed 12.0 m.

A car of mass 1750 kg accelerates from 0.00 m/s to 35.0 m/s.  What was the net work done on the car?