The Andromeda Spiral Galaxy Is Almost Edge-On to Us

question 121

Multiple Choice

The Andromeda spiral galaxy is almost edge-on to us. Astronomers have detected the orbital motion of this and other such galaxies' disk material by

• A)using Hubble's law.
• B)measuring Doppler shifts of different parts of the disk.
• C)the steady state theory.
• D)measuring Doppler shifts of different parts of the disk.

---

Definitions:

For Deposit Only

An endorsement on a check specifying that the check is to be deposited into an account and not cashed directly.

Over-The-Counter

A decentralized market where securities that are not listed on formal exchanges are traded, usually through a network of dealers.

Cash Receipts

The collection of money, typically in the form of cash or checks, received by a business.

Electronic Cash Registers

Machines or systems used at retail checkout points to calculate and record sales transactions, accept payments, and store cash.