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

Author Question: What is the most likely origin of the Valles Marineris on Mars? A) it is a fissure in the surface ... (Read 40 times)

littleanan

  • Hero Member
  • *****
  • Posts: 575
on: Jul 27, 2018
What is the most likely origin of the Valles Marineris on Mars?
 
  A) it is a fissure in the surface carved out by a giant impact
  B) it is a tectonic fracture associated with the formation of the adjacent Tharsis bulge
  C) it is a huge canyon system formed by water erosion
  D) it was formed from the separation of two tectonic plates

Question 2

Central black holes can be very efficient for converting the mass-energy of infalling matter to thermal energy in the accretion disk.
 
  Roughly what percentage of the mass-energy can be converted to other forms of energy as matter falls into a black hole? A) 0.7
  B) 1 - 4
  C) 10 - 40
  D) 100


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

juiceman1987

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

C


littleanan

  • Hero Member
  • *****
  • Posts: 575
Reply #2 on: Jul 27, 2018
TY


juiceman1987

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Parts of the Hand Used in Palpation; Ulnar Surface Parts of the Hand Used in Palpation; Ulnar Surface
The Sun as it appears from the surface of Earth during the middle of the day The Sun as it appears from the surface of Earth during the middle of the day
Fissure Fissure
T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are
Binding of a chylomicron to lipoprotein lipase on the inner surface of a capillary Binding of a chylomicron to lipoprotein lipase on the inner surface of a capillary
Two Hemispheres of Mars "نصفين من المريخ" Two Hemispheres of Mars "نصفين من المريخ"
Video: Stimulus (introduction)

For a complete list of videos, visit our video library