I need help, ACTUAL ANSWERS PLEASE
How do scientist categorize the electromagnetic spectrum?
Into six sections based on frequency.
Into seven sections based on frequency.
Into six sections based on amplitude.
Into seven sections bases on amplitude.
Answer:
Into seven sections based on frequency
Explanation:
There are 7 em spectrums from radio waves, to infrared waves, to gamma rays listest in order from lowest to highest frequency.
Which type of electromagnetic energy must be used carefully in medicine so it does not damage living tissue?(1 point)
low frequency waves
visible light
radio waves
gamma rays
Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. Therefore, gamma rays is used carefully in medicine without damaging living tissue.
What is electromagnetic wave?Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave.
There is a relation between energy of wave. frequency of wave, and wavelength of wave
Mathematically,
E=hc/λ
where,
E = energy of electromagnetic wave
h is planks constant having value 6.67×10⁻³⁴js
c is speed of light that is 3×10⁸m/s
λ is the wavelength of electromagnetic wave
There are many uses of electromagnetic radiations in medical field. Gamma rays are used to kill the dead cells from e.g. cancer but they don’t destroy the living cells as gamma is only a wave.
Therefore, gamma rays is used carefully in medicine without damaging living tissue.
To know more about electromagnetic wave, here:
https://brainly.com/question/12289372
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Which is NOT needed to START a wildfire.
1. Wind
2. dry debris
3. oxygen
4. unattended campfire
I'm trying to see if I'm correct, I think it's Dry Debris.
Answer:
you are correct
Explanation:
Answer: no oxygen is the wright answer
Explanation:
Because it only helps to burn a fire it does not make fire
A shorter wavelength does what to the frequency?
Increases the frequency to a lower frequency
Decreases the frequency to a higher frequency
Decreases the frequency to a lower frequency
Increases the frequency to a higher frequency
Answer:
Increases the frequency to a lower frequency
Explanation:
PLEASE ANSWER ASAP
What is the best description of cirrus clouds?
High level (altitude) clouds that are white and wispy like horses tails.
Low level (altitude) clouds that are wispy and made of ice crystals.
Middle level (altitude) clouds that are thick and spread out like a blanket.
Middle level (altitude) clouds that are white and puffy with flat bottoms.
Question 6 (1 point)
Which processes of the water cycle involve the movement of water in the liquid state?
Question 6 options:
evaporation and precipitation
surface runoff and condensation
precipitation and surface runoff
condensation and evaporation
Question 7
What is the name for raindrops that freeze as they fall through the air?
dew
sleet
rain
hail
Question 8
The gas that is most abundant in the atmosphere is ________.
oxygen
nitrogen
water vapor
trace gases
Question 9
In which layer is the ozone that absorbs harmful UV radiation waves?
mesophere
stratosphere
thermosphere
troposphere
Question 10
Air pressure increases as altitude (elevation) ______________?
Question 10 options:
decreases
increases
stays the same
Answer:
Low level (altitude) clouds that are wispy and made of ice crystals.
precipitation and surface runoff
Hail
Nitrogen
Stratosphere
Decreases
Please Award Brainliest!
Answer: Low level (altitude) clouds that are wispy and made of ice crystals.
precipitation and surface runoff
Hail
Nitrogen
Stratosphere
Decreases
when was Gorge Washington born? first one to answer will get a brainliest!
Many businesses are using infrared thermometers to check customer's temperatures as they enter. What are the benefits of using these thermometers? (Select all that apply.)
They check temperature using thermal energy waves that people give off.
They don't have to touch the person to accurately find their temperature.
They check temperature using UV light that people give off.
They have to touch a person to accurately find their temperature.
Answer:
Pretty sure B is one of them.
Explanation:
Your teacher has set up an investigation for class today. The following materials are on the science lab table.
Piece of unglazed
white porcelain
Iron pyrite
Hematite
Mica
Talc
Halite
Magnetite
Which property of minerals will you be testing for?
A cleavage
B density
C hardness
D streak
Answer:
Explanation:
c.
Answer:
Your would be C hope this helps...
Explanation:
What characteristic of an element determines how its atoms can bond with other atoms?
A. its total number of electrons
B. its number of valence electrons
C. how many low-energy-level electrons it has
D. how many protons and neutrons it has
50 brainly points!
Answer:
The answer is A
Explanation:
its total number of electrons
if we cannot see oxegyn, does that mean that fish do not see water?
Answer:
*Brain blows up*
The magnetic field of an object exerts a force on any magnetic object around it.
True
or
False
Name the following compounds:
a. NaBr
b. MgCl2
C. Lil
d. Cao
e. CuBr2
f. Feo
WHOEVER ANSWERS FIRST WILL BE BRAINLIEST AND WILL GET 5 STARS
Answer:
a. Sodium bromide
b. Magnesium chloride
c. lithium iodide
d. calcium oxide
e. copper bromide
f. iron oxide
GIVING BRAINLIEST!!!
Answer:
Pecan trees 1 and 4
Explanation:
1: 1 and 4
2a: With good soil and good parent plants
2b: Heredity
Answer:
Explanation:
1 and 4
With good soil and good parent plants
Heredity
im giving brainliest
Answer:
a
Explanation:
just needed the points, sorry
Answer:
I'm confused what is this?
Explanation:
When was Gorge Washington born? first one to answer will get a brainliest!
Answer: February 22, 1732
Explanation:
George Washington was born on February 22, 1732.
Correct me if it is incorrect.
Need help with science
Answer:
I got u man
Cu (reactant)= 1
S (reactant)= 1
Fe (product)= 1
O (product)= 4
Explanation:
The answer is quite simple, look at each element and see if there is an attached number at the end. O4= 4 oxygen atoms O3= 3 oxygen atoms. You see the pattern?
Also if there is no such number attached to the element, assume there is one atom.
what would happen to an object of 2.5g/ml when is placed in 1g/cm3
Answer:
It would sink because it is more dense.
Explanation:
When ever you see grams/mL or g/cm^3, know that they are the same thing.
mL = cm^3
Which 3 characteristics are used to describe all waves, regardless of type? Check all that apply.
Resting Position
Frequency
Trough
Amplitude
Crest
Wavelength
can someone help me with this science assignment
1. NA = Sodium, NA was the chemicals symbols for the element would be NA because in Latin it is natrium for natron in which is sodium in English, Sodium was created by Humphry Davy in the year of 1807. Element name Sodium, Chemical symbol NA atomic number, 11 Atomic mass 23.
2. AG = Sliver, AG was the chemicals symbols for the element would be AG because in Latin it is argentum in which in English means bright and also sliver. Element name Sliver Chemical symbol AG atomic number, 47 Atomic mass 108.
I need help with this
Answer:
The mass and physical structure of the body has changed.
The amount of molecules has changed and formed a new substance.
Explanation:
Hope that I helped you!
Which gas is not a significant contributor to greenhouse gasses.?
A. Carbon Dioxide
B. Hydrogen
C. Methane
D. Nitrous oxide
Answer:
C. Methane.
Explanation:
Methane is a chemical that can kill you. A, B and D all won't kill you because that is a significant contributor to greenhouse gasses.
hope this helped.
PLEASE HELP!!! I will mark Brainliest!!! How could you know if two substances were the same based upon 2 chemical reactions?
Answer:
Observing what the substance looks (color, size, texture) or smells like (odor). Objects can be made up of the same substance, but they differ in the properties of size, mass, and volume.
Explanation:
The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories. Some reactions will fit into more than one category.
Answer:
1.Color Change.
2.Production of an odor.
3.Change of Temperature.
4.Evolution of a gas (formation of bubbles)
5.Precipitate (formation of a solid)
If a chromosome folds, how is transcription prevented?
Question 2 options:
The DNA region is easily accessible.
The DNA region is not easily accessible.
The RNA region is not easily accessible.
The RNA has already been made.
Answer:
The DNA region is not easily accesible.
Explanation:
what do drumlins tell us about glaciers
ASAP i need a picture of Pangaea
Answer: I hope this helps!
plz download the doc and answer its due in 20 mins like bro wth
Answer:
and how do we know this is not a virus
Explanation:
sorry dude im just saying
Answer:
I agree with the comment above
sorry
Explanation:
Explain The process of Photosynthesis according to the chemical formula: Identify: The reactants(input), the products(outputs), and the energy source. **(Hint: Carbon Dioxide + Water = Glucose + Water)
Answer: 6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
The equation for photosynthesis is 6CO2 + 6H2O → C6H12O6 + 6O2.
Imagine that you and your friend are at the beach. You have your chairs and umbrella set up in the perfect spot near the water so you can jump in to cool off with ease. A few hours into your stay, the water line has managed to creep up closer and closer to your chairs and your things start to get wet! Your friend points up at the Moon and says it is to blame. What does this mean? Write a response in complete sentences. plz someone help!!!!!!!
Answer: High tides and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. ... When you're not in one of the bulges, you experience a low tide.
need help ASAP
Write a sentence that begins an adjective phrase. Be sure to punctuate it properly!
