The Star ɛ Canis Majoris Has an Absolute Magnitude of -4.1

question 39

Multiple Choice

The star ɛ Canis Majoris has an absolute magnitude of -4.1 and a spectral class of B2.Using Figures 10-7 and 10-8 of Comins,Discovering the Essential Universe,6th ed.,how would Canis Majoris be classified?

• A) B-type white dwarf
• B) B2 III
• C) B2 V
• D) B2 I

---

Definitions:

Tailshaft Speed

The rotational speed of the output shaft in the transmission that connects to the driveshaft, which influences vehicle speed and transmission performance.

Overdrive Ratios

In transmissions, a gear ratio that results in the drive shaft rotating faster than the engine's crankshaft, improving fuel efficiency.

6-speed World Transmission

A type of transmission with six forward gears, designed for optimized fuel efficiency and performance in vehicles.

Ranges

In the context of appliances, refers to kitchen stoves that combine a cooktop with an oven; in broader use, can mean a variety of distances or scopes.