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

Author Question: Molly measures a Hubble constant of 20 km/sec/million light-years. Sam measures a Hubble constant of ... (Read 133 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
Molly measures a Hubble constant of 20 km/sec/million light-years. Sam measures a Hubble constant of 25 km/sec/million light-years. All other assumptions being the same, which person would estimate a LARGER age to the universe?
 
  A) Sam
  B) Molly
  C) They both would measure the same age.

Question 2

There are ground-based telescopes much larger than Hubble, yet the HST still reveals the faintest objects yet seen. Explain.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

1_Step_At_ATime

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

In space, HST can operate close to its diffraction limit without the losses due to atmospheric turbulence. This allows it to produce sharper images of fainter objects.


Mimi

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Jul 27, 2018
Thanks


1_Step_At_ATime

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

How phytochrome acts as a molecular light switch. How phytochrome acts as a molecular light switch.
Sirius A and B Hubble photo Sirius A and B Hubble photo
President-elect Barack Obama 150 million tiny carbon nanotubes President-elect Barack Obama 150 million tiny carbon nanotubes
Interactions of Light and Matter Interactions of Light and Matter
The basic structure of an antibody molecule. Two heavy chains are joined by two light chains. The ... The basic structure of an antibody molecule. Two heavy chains are joined by two light chains. The ...
Step-Wise Treatment of Asthma in Children > 12 Years of Age and Adults Step-Wise Treatment of Asthma in Children > 12 Years of Age and Adults
Video: Automated external defibrillator (AED)

For a complete list of videos, visit our video library