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Colt1911 [192]
3 years ago
14

Write a paragraph about Space Manned Exploration (100 pts)

Chemistry
2 answers:
sashaice [31]3 years ago
8 0
Space Manned Exploration, more commonly known as Human spaceflight, is a type of space travel that launches to space with a spacecraft, including crews or regular passengers. The very first launching program that NASA made was back in 1958 was the Project Mercury with the goal for the first human put into Earth's orbit to survive and come back safely. Other famous spaceflights include the 1969's first moon landing of <span>Neil Armstrong and Edwin "Buzz" Aldrin. Today, NASA has confirmed another attempt to make a spaceflight to the moon in 2020 or 2023. We aren't far from those dates, so let's see what they can do! 


</span>
Ray Of Light [21]3 years ago
6 0

In the very beginning of the era of space exploration each new discovery definitely weighed a lot. The humanity has learnt many new amazing things and it is natural that we want to know more and more. However, do we have enough technology and intelligence for it?

Sian Meaney, a journalist and researcher at Cherwell College in Oxford, the UK, writes that such giants as China and Russia have recently made no claims to the scientific benefits of manned missions. Nevertheless, space exploration takes the money that could be spent on the development of “earthly” sciences, or on the exploration of the planet Earth itself.

The supporters of manned space missions argue that it is so natural for the human to explore new territories and acquire new knowledge. But don’t the secrets of our planet suffice to satisfy scientists’ interest? Can’t complex human body and soul be the main subjects of heavily invested studies? We still do not know the entire truth about our world. So, how dare we intrude on the one where our laws do not work?

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How does the state of atoms in a neon light change when light is emitted?
Blababa [14]
The state of atoms in a neon light when light is emitted is loss of energy.
5 0
3 years ago
Read 2 more answers
In a certain city, electricity costs $ 0.18 per kW ⋅ h . What is the annual cost for electricity to power a lamppost for 5.00 h
LuckyWell [14K]

Answer:

The cost of electricity  for 100 W power bulb = $ 32.85

Cost of electricity for 0.025 W  fluorescent  bulb =  $ 8.2125

Explanation:

Cost of electricity = $ 0.18 per KW-H

Time = 5 hour per day

Bulb power = 100 W = 0.1 KW

Fluorescent bulb power = 25 W = 0.025 KW

(a) Cost of electricity for 100 W power bulb

0.1 × 5 × 365 × 0.18 =  $ 32.85

(b) Cost of electricity for 0.025 W  fluorescent  bulb

0.025 × 5 × 365 × 0.18 = $ 8.2125

Therefore the cost of electricity  for 100 W power bulb = $ 32.85

Cost of electricity for 0.025 W  fluorescent  bulb =  $ 8.2125

6 0
3 years ago
The normal boiling point of methanol is 64.7∘c and the molar enthalpy of vaporization of 71.8kj/mol. the value of δs when 1.11 m
maxonik [38]
The answer is 236.5 J/K

According to Δ G formula:

ΔG = ΔH - TΔS

when ΔG is the change in free energy (KJ)

and ΔH is the change in enthalpy (KJ)= ΔHvap * moles

                                                              = 71.8 KJ/mol * 1.11 mol
                                                             
                                                              =   79.7 KJ

and T is the absolute temperature (K)= 64 °C + 273°C = 337 K

Δ S is the change in entropy  KJ/K

by substitution:

when at equilibrium ΔG = 0 

∴ΔS = ΔH / T

       =79.7 KJ/ 337 K

     = 0.2365 KJ/K

     = 236.5 J/K


6 0
3 years ago
How can you tell if glucose is present?
rosijanka [135]

Answer:

Plants use photosynthesis to make glucose. Glucose is also know as sugar. You can tell it is present if the plant receives sunlight as well as water.

Explanation:

MARK BRAINLIEST

4 0
3 years ago
Choose the correct statement about melting points. * Melting point can tell us if we have a mixture of compounds (for example, c
goldfiish [28.3K]

Answer: All of these statements are true

Explanation:

Melting point help us to determine if a mixture is pure or has impurities by the virtues of it melting range..

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