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

Author Question: How does the Space Shuttle take off? A) Its rocket engines push against the launch pad propelling ... (Read 69 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
on: Jul 27, 2018
How does the Space Shuttle take off?
 
  A) Its rocket engines push against the launch pad propelling the shuttle upwards.
  B) It converts mass-energy to kinetic energy.
  C) It achieves lift from its wings in the same way that airplanes do.
  D) Hot gas shoots out from the rocket and, by conservation of momentum, the shuttle moves in the opposite direction.
  E) The hot rocket exhaust expands the air beneath the shuttle, propelling it forward.

Question 2

In a photo like the Hubble Deep Field (Figure 20.1 in your textbook), we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives?
 
  A) the galaxies that are farthest away
  B) the galaxies that have the most hot, young O and B stars
  C) the galaxies that are the reddest in color
  D) the galaxies that are nearest to us


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nothere

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


Ebrown

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

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?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye
2008 launch of the SM-3 missile used to destroy American spy satellite USA-193 2008 launch of the SM-3 missile used to destroy American spy satellite USA-193
Mars from Hubble Space Telescope October 28, 2005 with dust storm visible. Mars from Hubble Space Telescope October 28, 2005 with dust storm visible.
Space Space
Rocket Larkspur Rocket Larkspur
Supermassive Black Holes as Engines for Galactic Activity Supermassive Black Holes as Engines for Galactic Activity
Video: Carpal Tunnel Syndrome

For a complete list of videos, visit our video library