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

Author Question: If light travels 63,000 AU in 1 year at 3 108 m/s, which of these best represents the unit of a ... (Read 104 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
on: Jul 27, 2018
If light travels 63,000 AU in 1 year at 3  108 m/s, which of these best represents the unit of a light-year?
 
  a. 63,000 AU b. 3  108 m/s
  c. 1 year d. All of the other choices are correct.

Question 2

Which is the shorter time unit - a light-second, a light-minute, or a light-year?
 
  a. light-second b. light-minute
  c. light-year d. None of the other choices are correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amandalm

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 27, 2018
Answer to Question 1

a
RATIONALE: You are seeking a unit of distance as the unit for light-year is distance.

Answer to Question 2

d
RATIONALE: The units given are distance units.


burton19126

  • Hero Member
  • *****
  • Posts: 532
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


amandalm

  • Sr. Member
  • ****
  • Posts: 306
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Assessment of Light Touch Assessment of Light Touch
The biochemical reactions of near-infrared light The biochemical reactions of near-infrared light
This 80-year old man in a village in Hubei, China, has slowed down, but he has not retired. He is ... This 80-year old man in a village in Hubei, China, has slowed down, but he has not retired. He is ...
100-Unit Insulin Syringe 100-Unit Insulin Syringe
30-Unit Insulin Syringe 30-Unit Insulin Syringe
Light-reflecting Eyes Light-reflecting Eyes
Video: Stroke volume - contractility definition

For a complete list of videos, visit our video library