When the absolute magnitudes, or brightnesses, of stars are ...

[khang]

When the absolute magnitudes, or brightnesses, of stars are plotted against their surface temperatures or colors, we obtain a(n)
 a. Hertzsprung-Russell (or H-R) diagram.
  b. straight line.
  c. random pattern.
  d. none of the above

Question 2

In a 12-V battery circuit, a 10- resistor and a 30- resistor are connected in series. How much current does the battery supply to the circuit?

[sabina576]

Answer to Question 1

a

Answer to Question 2

0.30 A

[khang]

Thanks for the timely response, appreciate it

[peter]

Gracias!