« previous next »

Author Question: A typical space telescope is operated by how many astronauts? A) 7 B) 5 C) 3 D) 1 E) ... (Read 66 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
A typical space telescope is operated by how many astronauts?
 
  A) 7
  B) 5
  C) 3
  D) 1
  E) 0

Question 2

Contrast the chemical composition of interstellar gas with that of interstellar dust.
 
  What will be an ideal response?


nanny

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

Gas is almost all hydrogen and helium, but the dust is clumps of heavier elements, condensed out as grains much like the material of the Earth.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

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

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Fluid compartments in a typical vertebrate. Fluid compartments in a typical vertebrate.
Succession in the intertidal zone involves colonization and competition for limited space among spec Succession in the intertidal zone involves colonization and competition for limited space among spec
Space Space
Typical slip-joint pliers are common household pliers. The slip joint allows the jaws to be opened ... Typical slip-joint pliers are common household pliers. The slip joint allows the jaws to be opened ...
A typical handheld cylinder leakage tester. A typical handheld cylinder leakage tester.
A typical solenoid-operated starter. A typical solenoid-operated starter.
Video: Arthroscopy

For a complete list of videos, visit our video library