What percentage of a star's total lifetime is spent on the main sequence?
A) 100% B) 50% C) 90% D) 20% E) 10%
C
Physics & Space Science
You might also like to view...
The amount of heat necessary to change the temperature of 1 kg of a substance 1°C is
a. 1 cal. b. the specific heat. c. the heat difference. d. 1 J.
Physics & Space Science
Relative humidity is measured with a(n) ______________
Fill in the blank(s) with correct word
Physics & Space Science
A good ammeter has ________ resistance and a good voltmeter has ________ resistance. "Good" means that it affects the system being measured by very little.
A. low, low B. low, high C. high, high D. high, low E. medium, no
Physics & Space Science
A weight lifter can bench press How many milligrams (mg) is this?
A) 1.71 × 108 mg B) 1.71 × 109 mg C) 1.71 × 107 mg D) 1.71 × 106 mg
Physics & Space Science