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

Author Question: The weight of spaceman Speff at the surface of planet X, solely due to its gravitational pull, is ... (Read 23 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
on: Jul 29, 2018
The weight of spaceman Speff at the surface of planet X, solely due to its gravitational pull, is 389 N. If he moves to a distance of 1.86  104 km above the planet's surface, his weight changes to 24.31 N.
 
  What is the mass of planet X, if Speff's mass is 75.0 kg? (G = 6.67  10-11 N  m2/kg2) A) 2.99  1024 kg
  B) 2.99  1018 kg
  C) 2.99  1017 kg
  D) 1.59  1018 kg

Question 2

When a fixed amount of ideal gas goes through an isothermal expansion
 
  A) its internal (thermal) energy does not change.
  B) the gas does no work.
  C) no heat enters or leaves the gas.
  D) its temperature must decrease.
  E) its pressure must increase.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fur

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


future617RT

  • Member
  • Posts: 543
Reply 2 on: Jul 29, 2018
Gracias!

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

View of the bottom surface of the human brain. View of the bottom surface of the human brain.
Sliding effleurage with a thumb between metatarsals on the dorsal foot surface. Slide from web to ... Sliding effleurage with a thumb between metatarsals on the dorsal foot surface. Slide from web to ...
Gaussian surface in the absence of a dielectric Gaussian surface in the absence of a dielectric
Telescopic View of the Lunar Surface Telescopic View of the Lunar Surface
A thin laser beam traveling in air strikes the surface of a glass plate at 41.2° with the ... A thin laser beam traveling in air strikes the surface of a glass plate at 41.2° with the ...
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: The Lagging Strand in DNA Replication and Replication in Action

For a complete list of videos, visit our video library