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

Author Question: Why do we need new forms of technology to make it possible to journey to the nearest stars within a ... (Read 60 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
Why do we need new forms of technology to make it possible to journey to the nearest stars within a human lifetime?
 
  What will be an ideal response?

Question 2

It is impossible for a star to have a negative apparent magnitude, such as -1.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lkoler

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jul 27, 2018
Answer to Question 1

Present rockets operate through chemical reactions, i.e., ordinary burning, which is a relatively inefficient process. To achieve high speeds requires lots of additional fuel, but the added weight of the fuel makes it more difficult to increase the rocket's speed. Such chemical rockets therefore have a fundamental limit to their speed and can go no faster than about 0.1 percent of the speed of light, which is not enough to reach the nearest stars (more than a light year away) in less than 1000 years.

Answer to Question 2

FALSE


naturalchemist

  • Member
  • Posts: 542
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

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.

The two bright stars are (left) Alpha Centauri and (right) Beta Centauri. The two bright stars are (left) Alpha Centauri and (right) Beta Centauri.
Biopsy. Various forms of gynecological biopsy are shown. Biopsy. Various forms of gynecological biopsy are shown.
April Greiman, Does It Make Sense? April Greiman, Does It Make Sense?
Make a note of the reading on the gauge after the first “puff,” which indicates the first ... Make a note of the reading on the gauge after the first “puff,” which indicates the first ...
Distribution and Forms of Precipitation: Freezing Rain Distribution and Forms of Precipitation: Freezing Rain
Technology in the Law Office Technology in the Law Office
Video: Causes of Angina

For a complete list of videos, visit our video library