caedenalex06 caedenalex06

06-05-2020
Physics

contestada

Which of the following is a unique feature of the Earth's environment that aerospace engineers needed to imitate on a spacecraft in order to make manned spaceflight possible?

A. The Earth has a strong magnetic field.
B. The Earth has an atmosphere rich in carbon dioxide and hydrogen.
C. The Earth has a strong gravitational field.
D. The Earth has an atmosphere rich in nitrogen and oxygen.

Respuesta :

linaalbayatiforlife linaalbayatiforlife

11-05-2020

Answer: The answer is B

Explanation:

The Earth has an atmosphere rich in nitrogen (78%) and oxygen (20%). Aerospace engineers have designed systems that supply astronauts with air that is very similar in composition to Earth's atmosphere. This means that the air fed into spacecraft is mostly nitrogen and oxygen.

Answer Link

Otras preguntas

Suppose you set up a hotdog truck near a football stadium. On game days, you decide to hire your best friend to help you in the kitchen, while you work by yours

Based on the video, sweet tooth is pursuing a(n) ________ strategy. 1) defensive 2) growth 3) tactical 4) stability 5) operational

Which of the following is one of the principles of totally quality management promoted by ISO 9000? a. Customer focused b. Process approach c. Continuous improv

What assessment data supports the diagnosis of acute organ rejection? (Select all that apply)

What is the ligament associated with the temporomandibular joint that serves as an important landmark for local anesthesia, and what is the corresponding nerve

What is the missing code for the following function? def tax(rate,price): taxCharged price* rate /100 taxCharged pay tax(5, 20) print(pay)

Analyze the one similarity and one difference in the legitimizing and consolidating of power by two of the following empires: Ottoman & MughalsSIMILARITY (T

Find the volume of the cylinder. Either enter an exact answer in terms of π or use 3.14 for π.

Which of the following statements explains why a material is a good conductor? a) It has unattached protons. b) It has numerous free electrons. c) It is a metal

True or False: The process properties component defines a collection of properties you can refer to throughout your process.