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 52 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
Excellent

vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Because of the hazards of a vacuum, astronauts must wear a pressurized space suit while outside thei Because of the hazards of a vacuum, astronauts must wear a pressurized space suit while outside thei
The tenuous atmosphere of Mars, visible on the horizon in this low-orbit photo The tenuous atmosphere of Mars, visible on the horizon in this low-orbit photo
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
Orbit of Pluto Orbit of Pluto
Three types of “end feel” in normal joints. Three types of “end feel” in normal joints.
Spaceman Speff orbits planet X with his spaceship. To remain in orbit at 556 Spaceman Speff orbits planet X with his spaceship. To remain in orbit at 556
Video: Bulk flow - Factors that influence bulk flow

For a complete list of videos, visit our video library