All categories

3 years ago

HURRY!!!

2 answers:

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 A

Explanation:

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

You might be interested in

the element weighed 3.555 grams when it was burned in oxygen an oxide compound was produced. the product mass was 4.666 grams. W

vodka [1.7K]

Idk really but i hope you figure out the answer im not on that yet.

6 0

4 years ago

Tiffany was investing how fast it took Hayden to react to different sounds. Identify the independent variable.

Hatshy [7]

Answer:

The different sounds

Explanation:

since it can not be changed

7 0

3 years ago

What is the pH of a 0.100 M HI solution? Is that neutral, acidic, or basic? acidic What is the pOH of a 0.100 M HI solution? Is

inessss [21]

Answer: The pH and pOH of the solution is 1 and 13 respectively and the solution is acidic in nature.

Explanation:

There are three types of solution: acidic, basic and neutral

To determine the type of solution, we look at the pH values.

The pH range of acidic solution is 0 to 6.9
The pH range of basic solution is 7.1 to 14
The pH of neutral solution is 7.

We are given:

Concentration of HI = 0.100 M

1 mole of HI produces 1 mole of hydrogen ions and 1 mole of iodide ions

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

$[H^+]=0.100M$

Putting values in above equation, we get:

$pH=-\log(0.100)\\\\pH=1$

To calculate the pOH of the solution, we use the equation:

pH + pOH = 14

$pOH=14-1=13$

Hence, the pH and pOH of the solution is 1 and 13 respectively and the solution is acidic in nature.

4 0

4 years ago

What is the equilibrium expression for the reatcion bellow 2SO3(g)<=>O2(g)+2SO2(g)

Luda [366]

Answer:

[O2(g)][SO2(g)]^2/[SO3(g)]^2

8 0

3 years ago

state whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting

Artist 52 [7]

1. rancidification fixation of water is CHEMICAL CHANGE

2. Tearing of paper is PHYSICAL CHANGE

3. Rusting if iron is CHEMICAL CHANGE

4. Electrolysis of water is CHEMICAL CHANGE

5 0

3 years ago