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

Author Question: How would you weigh the astronauts in orbit (where they feel weightless) so that you can keep them ... (Read 42 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
How would you weigh the astronauts in orbit (where they feel weightless) so that you can keep them in good health?
 
  What will be an ideal response?

Question 2

It was once thought that a black hole absorbed all the radiation falling upon it and radiated none.
 
  If this were true, what would one infer the temperature of a black hole to be? Actually Stephen Hawking discovered that black holes have a VERY small probability of radiating. Modifying your first answer, would you now infer a large or small temperature for a black hole.?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Missbam101

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 27, 2018
Answer to Question 1

You could determine their MASS by harnessing them to springs, setting them to oscillate (SHM) and timing their period of oscillation. Knowing the spring constant allows one to calculate the mass. Remember 2 = k/m

Answer to Question 2

If no radiation escaped, then its equivalent temperature would be 0 K. But since it radiates (very little) it must be slightly above absolute zero.


codyclark

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
Gracias!

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the Earth as viewed from Lunar orbit during the Apollo 8 mission, Christmas Eve, 1968. Africa is at the
Moon orbit Moon orbit
The Orbit and Tails of a Comet The Orbit and Tails of a Comet
Cradle the head briefly in both hands to end this section. Hold for a few seconds until you can feel ... Cradle the head briefly in both hands to end this section. Hold for a few seconds until you can feel ...
Testing the client’s ability to feel vibrations, the knee Testing the client’s ability to feel vibrations, the knee
The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked large ... The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked large ...
Video: Electrocardiogram Examination

For a complete list of videos, visit our video library