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

Author Question: The main problem with early attempts to listen for radio signals from space was A) that they were ... (Read 24 times)

mspears3

  • Hero Member
  • *****
  • Posts: 586
on: Jul 27, 2018
The main problem with early attempts to listen for radio signals from space was
 
  A) that they were conducted at relatively low frequencies which have problems penetrating the Earth's upper atmosphere
  B) building receivers sensitive enough to detect extraterrestrial signals
  C) that they were conducted at relatively high frequencies which have problems penetrating the Earth's lower atmosphere
  D) interference by radio waves from the Sun

Question 2

Light traveling at an angle into a denser medium is refracted
 
  A) toward the normal.
  B) away from the normal.
  C) perpendicular to the normal.
  D) parallel to the normal.
  E) equally.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


mspears3

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


pikon

  • Sr. Member
  • ****
  • Posts: 361
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

The meninges from the outside in: dura mater, arachnoid, and pia mater. Also showing the subarachnoi The meninges from the outside in: dura mater, arachnoid, and pia mater. Also showing the subarachnoi
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Example of problem focused patient Example of problem focused patient
Two stubby screwdrivers used to access screws that have limited space above. A straight blade is on ... Two stubby screwdrivers used to access screws that have limited space above. A straight blade is on ...
Cards Used in a Socially Situated Version of the Problem-Solving Test Cards Used in a Socially Situated Version of the Problem-Solving Test
Problem Problem
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library