1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesya692 [45]
3 years ago
12

What was perphaps the greatest challenge of human space flight?

Physics
2 answers:
mezya [45]3 years ago
6 0
The risk of human lifes
natka813 [3]3 years ago
4 0
Space is more hostile to the human body.

You might be interested in
What is the surface area to volume ratio of this cube
tamaranim1 [39]

I can't see that cube from here.

But if the length of the side of the cube is ' K ' units,
then the surface area of the cube is  6K² units², and
the volume of the cube is  K³ units³.

The ratio of the surface area to the volume is

               (6K² units²) / (K³ units³)  =  (6) / (K units) .

So for example, if the side of the cube is 2 inches, then
the ratio of surface area to volume is  "3 per inch".

That's the answer.  I did the whole thing in order to earn
the points, but I don't expect you to understand much of it,
because I see from your username that you suck at math.
I'm sorry you decided that.  Now that you've put up the
brick wall, it'll be even harder for any math to find its way
in there, and you'll miss out on a lot of the fun.

3 0
3 years ago
Which is not one of the forms that energy can take?
sladkih [1.3K]
Question 1: Newtonian. It refers to work of Newton. Light, electrical and chemical energies are different forms of energy. 
Question 2: Nuclear power plants. Heat , Sunlight and energy in atoms are not nuclear energies. 
Question 3: Batteries. the other two are examples of mechanical energy. But batteries are examples for chemical energy.
4 0
3 years ago
Read 2 more answers
PLEASE HURRY
Rashid [163]

Answer:

1:knowledge of the structure of DNA

2:an understanding of hemoglobin

4:ground fault circuit interrupters

7:aerogel

Explanation:

7 0
2 years ago
BRAINLIEST!!!!!
Serggg [28]

Answer:

A., an action which causes movement and an opposite reaction

Explanation:

I don't really know how to explain it, but this helped hopefully! :) Have a bless day

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=2.25%20%5Ctimes%2030" id="TexFormula1" title="2.25 \times 30" alt="2.25 \times 30" align="absm
Paraphin [41]
67.5 is the answer i believe!!
7 0
2 years ago
Read 2 more answers
Other questions:
  • In a ballistics test, a 28-g bullet pierces a sand bag that is 30 cm thick. If the initial bullet velocity was 55 m/s and it eme
    11·1 answer
  • Which of the following describes a response to external stimuli?
    14·2 answers
  • The average speed between earth and the sun is 1.50 x10^8 km. Calculate the average speed of the Earth in its orbit in kilometer
    9·2 answers
  • Which "spheres" are interacting when water evaporates from plants
    14·2 answers
  • The rate which light flows through a given area of space is referred to as ita
    7·1 answer
  • Slow twitch muscles are needed for?
    7·2 answers
  • Within a vacuum, the property to all electromagnetic waves is their WHAT?
    10·1 answer
  • What is a property of “normal force”? a. It always points perpendicular to the contact surface. b. It always points parallel to
    11·1 answer
  • A charged capacitor with C = 780 μF is connected in parallel to an inductor that has L = 0.290 H and negligible resistance. At a
    10·1 answer
  • a 1300-kilogram space vehicle travels at 4.8 meters per second along the level surface of mars. if the magnitude of the gravitat
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!