This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A star is 10 parsecs from Earth. Which statement is true? A) The star's apparent magnitude is ... (Read 77 times)

mwit1967

  • Hero Member
  • *****
  • Posts: 501
on: Jul 27, 2018
A star is 10 parsecs from Earth. Which statement is true?
 
  A) The star's apparent magnitude is larger than its absolute magnitude.
  B) The star is about 33 ly away.
  C) The star's parallax is 1.0 arc seconds.
  D) The star's apparent magnitude is smaller than its absolute magnitude.
  E) The star is in a different galaxy.

Question 2

The twinkling of starlight and the focusing of images by lenses are both due to ________ of light.
 
  A) transmission B) refraction C) aberration D) reflection E) polarization


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


mwit1967

  • Member
  • Posts: 501
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Balmer Lines in the Spectrum of a Star Balmer Lines in the Spectrum of a Star
Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
Humans are related to Earth’s other organisms Humans are related to Earth’s other organisms
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
Early Earth Early Earth
Earth 150 Million Years Ago Earth 150 Million Years Ago
Video: Forming urine ( influencing factors), Forming dilute urine & Forming concentrated urine

For a complete list of videos, visit our video library