##### Which of the following occurs as a result of an abundance of tryptophan in E. coli?

Which of the following occurs as a result of an abundance of tryptophan in E. coli?

A.The leader sequence is not transcribed.

B.The 5 trp genes (TrpA - TrpE) are not transcribed.

C.Stalling of the ribosome at trp codons in the leader sequence

D. The 5 trp genes (TrpA - TrpE) are transcribed, but not translated.

In: Biology

##### Over which product do you suggest the firm keep the tightest control?

Your company has compiled the following data on the small set of products that comprise the specialty repair parts division. Perform ABC analysis on the data. Over which product do you suggest the firm keep the tightest control?

$$\begin{array}{|c|c|c|} \hline \text { SKU } & \text { Annual Demand } & \text { Unit cost } \\ \hline \text { R11 } & 125 & \ 25 \\ \hline \text { S22 } & 55 & \ 90 \\ \hline \text { T33 } & 100 & \ 500 \\ \hline \text { U44 } & 150 & \ 550 \\ \hline \text { V55 } & 2000 & \ 4 \\ \hline \end{array}$$

• S22
• R11
• U44
• V55
• T33

In: Operations Management

For a certain item, the cost-minimizing order quantity obtained with the basic EOQ model is 200 units, and the total annual inventory (carrying and setup) cost is $600. What is the inventory carrying cost per unit per year for this item? In: Operations Management ##### The assumptions of the production order quantity model are met in a situation where annual demand is 3650 units The assumptions of the production order quantity model are met in a situation where annual demand is 3650 units, the setup cost is$50, holding cost is $12 per unit per year, the daily demand rate is 10 and the daily production rate is 100. The production order quantity for this problem is approximate. In: Operations Management ##### The production order quantity for this problem is approximately 612 units. What is the average inventory for this problem? a production order quantity problem has a daily demand rate = 10 and a daily production rate = 50. The production order quantity for this problem is approximately 612 units. What is the average inventory for this problem? In: Operations Management ##### A certain type of computer costs$1,000, and the annual holding cost is 25% of the value of the item.

Section A: This section carries 10 points

A certain type of computer costs $1,000, and the annual holding cost is 25% of the value of the item. Annual demand is 10,000 units, and the order cost is$150 per order. What is the approximate economic order quantity? What is the total inventory cost?

Section B: This section carries 10 points

What is the difference between continuous review system and periodic review system?

In: Operations Management

##### The two most basic inventory questions answered by the typical inventory model are:

The two most basic inventory questions answered by the typical inventory model are:

• A) timing of orders and cost of orders.
• B) order quantity and cost of orders.
• C) timing of orders and order quantity.
• D) order quantity and service level.
• E) ordering cost and carrying cost.

In: Operations Management

##### Which of the following is NOT one of the four main types of inventory?

Which of the following is NOT one of the four main types of inventory?

• A. raw material inventory
• B. work-in-process inventory
• C. maintenance/repair/operating supply inventory (MRO)
• D. just-in-time inventory
• E. finished -goods inventory Reset Selection

In: Operations Management

##### The objective of inventory management is to

The objective of inventory management is to

• A. strike a balance between inventory investment and customer service.
• B. take advantage of quantity discounts.
• C. decouple various parts of the production process.
• D. provide a selection of goods for anticipated customer demand.

In: Operations Management

##### A soft drink (mostly water) flows in a pipe at a beverage plant with a mass flow rate that would fill 220 0.355

A soft drink (mostly water) flows in a pipe at a beverage plant with a mass flow rate that would fill 220 0.355 - L cans per minute. At point 2 in the pipe, the gauge pressure is 152kPa and the cross-sectional area is 8.00cm2. At point 1, 1.35m above point 2, the cross-sectional area is 2.00cm2.

Part a

Find the mass flow rate. kg/s

part b

Find the volume flow rate. L/s

part c

Find the flow speed at point 1.   m/s

In: Physics

##### Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day.

Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose in her hand 1.0 meters above the ground and is trying to sprayFerdinand, who is standing 10.0 meters away.

Part A

Will Isabella be able to spray Ferdinand if the water is flowing out of the hose at a constant speed v0 of 3.5 meters per second? Assume that the hose is pointed parallel to the ground and take the magnitude of the acceleration g due to gravity to be 9.81 meters per second, per second.

• Yes
• No

Part B

To increase the range of the water, Isabella places her thumb on the hose hole and partially covers it. Assuming that the flow remains steady, what fraction f of the cross-sectional area of the hose hole does she have to cover to be able to spray her friend?

Assume that the cross-section of the hose opening is circular with a radius of 1.5 centimeters.

In: Physics

##### An ore sample weighs 17.50 N in air. when the sample is suspended

An ore sample weighs 17.50 N in air. when the sample is suspended by a light cord and totally immersed in water the tension in the cord is 11.20 N.

Find the total volume and density of the sample.

In: Physics

##### A hollow plastic sphere is held below the surface of a fresh-water lake by a cord anchored to the bottom of the lake.

A hollow plastic sphere is held below the surface of a fresh-water lake by a cord anchored to the bottom of the lake. The sphere has a volume of 0.650 cubic meters and the tension in the cord is 900 N.

a) Calculate the buoyant force exerted by the water on the sphere.

b) what is the mass of the sphere?

c) the cord breaks and the sphere rises to the surface. When the sphere comes to rest, what fraction of its volume will be submerged?

In: Physics

##### A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 45.0 kg woman to be able to stand on it without getting her feet wet?

A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 45.0 kg woman to be able to stand on it without getting her feet wet?

In: Physics

##### A rock is suspended by a light string. When the rock is in air, the tension in the string is 39.2 N.

A rock is suspended by a light string. When the rock is in air, the tension in the string is 39.2 N. When the rock is totally immersed in water, the tension is 28.4 N. When the rock is totally immersed in an unknown liquid, the tension is 18.6 N. What is the Density of the unknown liquid.

In: Physics