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
pentagon [3]
3 years ago
6

HURRY!!!

Chemistry
2 answers:
marusya05 [52]3 years ago
7 0

a) These telescopes must make observations above much of the water vapor in the atmosphere because water can block infrared rays.

Explanation:

Ground- based infrared telescopes are placed in a high altitudes dry climates because the telescopes must make observations above much of water vapor since they cut and block them off.

  • Telescopes are devices that are used to observe very distant objects.
  • An infrared telescope is sensitive to infrared rays.
  • Infrared rays are part of the electromagnetic radiations.
  • These rays are usually blocked off by the presence of water vapor.
  • Desert areas that lacks water vapor in the atmosphere are the most desired for sighting such facilities.

learn more:

Visible light brainly.com/question/7746015

#learnwithBrainly

Valentin [98]3 years ago
7 0

Answer:

THE ANSWER IS<em> A</em>

<em>Explanation:</em>

<em>A)THESE TELESCOPES MUST MAKE OBSERVATIONS ABOVE MUCH OF THE WATER VAPOR IN THE ATMOSPHERE BECAUSE WATER CAN BLOCK INFRARED RAYS.</em>

You might be interested in
How do you find empirical formula
kifflom [539]

Answer:

Convert the mass of each element to moles using the molar mass from the periodic table. then Divide each mole value by the smallest number of moles calculated. Round to the nearest whole number

6 0
3 years ago
If an object is travelling 25.0 meters/second, how far will it travel in 45 minutes?
Misha Larkins [42]
  • Speed=25m/s
  • Time=45min=(45×60)s=2700s

\\ \rm\longmapsto Distance=Speed(Time)

\\ \rm\longmapsto Distance=25(2700)

\\ \rm\longmapsto Distance=67500m

4 0
2 years ago
How are mitosis and meiosis similar? How are they different? Provide 1 way the two processes are the same and 2 ways the 2 proce
swat32

Answer:

Similar: both processes of cell division; both processes take place in the nucleus of the cell

Different: mitosis divides into 2, meiosis divides into 4; one is the division of body cells and the other is of specifically sex cells

Explanation:

https://byjus.com/biology/mitosis-and-meiosis/

^ this has more info!

3 0
2 years ago
An alpha particle is equivalent to the nucleus of an atom of which element?(1 point)
Monica [59]

Answer: An alpha-particle is identical to the nucleus of a normal (atomic mass four) helium atom i.e. a doubly ionised helium atom. Alpha particles (also termed alpha radiation or alpha rays) was the first nuclear radiation to be discovered, beta particles and gamma rays were identified soon after.

7 0
3 years ago
Using the following equation for the combustion of octane calculate the heat associated with the formation of 100.0 g of carbon
natali 33 [55]

Answer:

The right solution is "-602.69 KJ heat".

Explanation:

According to the question,

The 100.0 g of carbon dioxide:

= \frac{100.0 \ g}{114.33\  g/mole}

= 0.8747 \ moles

We know that 16 moles of CO_2 formation associates with -11018 kJ of heat, then

0.8747 moles CO_2 formation associates with,

= -\frac{0.8747}{16}\times 11018 \ KJ \ of \ heat

= -0.0547\times 11018

= -602.69 \ KJ \ heat

8 0
3 years ago
Other questions:
  • "find the heat absorbed by the gas during this process."
    15·1 answer
  • The molecular formula mass of this compound is 150 amu . what are the subscripts in the actual molecular formula? enter the subs
    11·1 answer
  • Which type of environmental pollution would not be the direct result of the human use of fossil fuels? A) The expansion of landf
    8·1 answer
  • Vitamin c is known chemically by the name ascorbic acid determine the empirical formula of ascorbic acid if it is composed of 40
    6·1 answer
  • Sulfuric acid is essential to dozens of important industries from steelmaking to plastics and pharmaceuticals. More sulfuric aci
    10·1 answer
  • How many moles are in a solution with a concentration of 5 M and a volume of 0.25 L?
    9·1 answer
  • Calculate the number of moles in 23.8 grams of Nitrogen, N.
    13·1 answer
  • Where did the word "atom" come from?
    15·2 answers
  • (b) Glycogen may be broken down to form glucose.
    5·1 answer
  • A laboratory assistant needs to prepare 35.2 liters of hydrogen at 25.0°c and 101.3 kilopascals. this is the equation for the re
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!