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 30 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
Excellent

dreamfighter72

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Territorial reef fish compete intensely for space. Territorial reef fish compete intensely for space.
Space-Beach Wallpaper Space-Beach Wallpaper
Supermassive Black Holes as Engines for Galactic Activity Supermassive Black Holes as Engines for Galactic Activity
Since 1991, General Motors engines have been equipped with slightly (1/8 inch or 3 mm) longer spark ... Since 1991, General Motors engines have been equipped with slightly (1/8 inch or 3 mm) longer spark ...
The absorption of cerebrospinal fluid from the subarachnoid space (blue) into a major sinus. Note ... The absorption of cerebrospinal fluid from the subarachnoid space (blue) into a major sinus. Note ...
A space probe approaches a planet, taking measurements as it goes. If it detects a potential ... A space probe approaches a planet, taking measurements as it goes. If it detects a potential ...
Video: Introduction to Pre-eclampsia

For a complete list of videos, visit our video library