Why Can Astronomers Not Tell from What Direction a Particular

question 14

Multiple Choice

Why can astronomers not tell from what direction a particular cosmic ray started toward the Earth?

• A) all cosmic rays are scattered by dust in interstellar space
• B) we don't believe cosmic rays have a particular source; they have always been circulating around the Galaxy
• C) cosmic rays are reflected by interstellar matter and thus are always reversing direction
• D) cosmic rays are charged particles and are thus spiral around the Earth and the Galaxy's magnetic field
• E) cosmic rays are very strongly Doppler shifted

Understand the roles individuals play within a buying center.

Comprehend the North American Industry Classification System (NAICS) and its purpose.

Understand the stages of the organizational buying process and differences from consumer buying.

Understand how to calculate the price of zero-coupon and coupon bonds based on forward interest rates.

---

Definitions:

Step-down Method

An allocation method used in cost accounting to assign overhead costs to different departments based on a hierarchical order.

Labor Hours

The total number of hours worked by employees for which they are compensated, often used as a basis for allocating overhead in cost accounting.

Space Occupied

The amount of physical area taken up by an entity, such as inventory in a warehouse or machinery in a factory.

Step-down Method

A method used in cost accounting to allocate service department costs to production departments in multiple steps, based on the services rendered.