Answer:
C is probably the answer
1. What are some ways in which materials affect how light is transmitted?
3. In order for an object to appear white, which wave lengths must the light contain and the object reflect?
4. If you are a firefighter searching a smokefilled apartment. Would you want to use a stronger ligt to help you see better? Why or Why not.
6.If you focus a red light, a green light, and a blue light on the same part of a black curtain, what color will the curtain appear to be? Why?
Answer:
You have read that EM waves can interact with a material medium in
the same ways that mechanical waves do. Three forms of interaction
play an especially important role in how people see light. One form is
reflection. Most things are visible because they reflect light. The two
other forms of interaction are transmission and absorption.
(trans-MIHSH-uhn) is the passage of an EM wave
through a medium. If the light reflected from objects did not pass
through the air, windows, or most of the eye, we could not see the
objects. (uhb-SAWRP-shun) is the disappearance of an
EM wave into the medium. Absorption affects how things look, because
it limits the light available to be reflected or transmitted.
Explanation:
Transparent (trans-PAIR-uhnt) materials allow most of the light
that strikes them to pass through. It is possible to see objects
through a transparent material. Air, water, and clear glass are transparent. Transparent materials are used for items such as windows,
light bulbs, thermometers, sandwich bags, and clock faces.
Translucent (trans-LOO-suhnt) materials transmit some light, but
they also cause it to spread out in all directions. You can see light
through translucent materials, but you cannot see objects clearly
through them. Some examples are lampshades, frosted light bulbs,
frosted windows, sheer fabrics, and notepaper.
Opaque (oh-PAYK) materials do not allow any light to pass
through them, because they reflect light, absorb light, or both.
Heavy fabrics, construction paper, and ceramic mugs are opaque.
Shiny materials may be opaque mainly because they reflect light.
Other materials, such as wood and rock, are opaque mainly
because they absorb light.
1. Transmission of Light
Some materials have a low light-absorption rate this means that they are excellent at light transmission. Some of those materials are water, air, and glass. Note that their common quality is transparency.
When light waves go through the boundary between different matter, they are said to be transmitted. When some of the light that travels through that object is partially absorbed, the material is said to be translucent. Examples of translucent objects are curtains, window blinds, colored glass, lampshades, etc.
In pure physics terms, when vibrations of electrons are transported onto neighboring atoms on the other side of the object, such vibrations or frequencies of light have been transmitted, and that object that carries out the transportation is said to be transparent.
If however, at the surface of the material the electrons are reemitted after a short period of vibration, then the light wave is said to have been reflected. Objects which do not absorb but reflect light are said to be opaque. Examples of opaque objects are silver and gold.
All black surfaces absorb light.
2. Light Spectrum:
If an object appears white, it means that all the visible wavelengths of light that shine on it are reflected back.
3. Light for Navigating Smoky terrain:
The best forms of light for navigating a fire and smoke situation are Red LEDs, Infrared, and Thermal Imaging.
Stronger lights cannot necessarily cut through smoke because smoke contains so many suspended particles and or matter. These particles absorb most of the light making it difficult to see through them.
Firefighters and Military personnel use special devices called Foward-Looking Infrared Radiation (FLIC) which is able to identify infrared radiations emitted from a heat source and produces a live feed video output.
For more about the physics of light, click here:
https://brainly.com/question/18704022
Which event happened first?
Group of answer choices
1. The Indian Removal Act displaced many indigenous people.
2. A European captain kidnapped Tisquantum.
3. Settlers established Massachusetts Bay Colony.
4.Ousamequin first visted Plymouth.
Answer: I think it might be the Indian removal act.?!♀
Explanation : my teacher said said so
A European captain kidnapped Tisquantum event happened first. Thus, option B is correct.
What is an event?The process through which something is happening might be referred to as the event. This implies that the event will involve the current situation. This defines the happening of the event and how the event has taken place.
It is thought that the Wampanoag subsequently kidnapped Tisquantum because they were wary of his strong friendship with Thomas Dermer. Thomas Hunt, another English missionary, abducted Tisquantum and enslaved him in the city of Málaga after trafficking them to Spain.
Tisquantum was one of several prisoners that the neighborhood monks purchased with an eye toward educating and evangelizing them. Therefore, option B is the correct option.
Learn more about event, here:
https://brainly.com/question/12961938
#SPJ6
What was the first problem with the new settlers and the old? its about the fredonian republic
Answer:
Lured to the New World with promises of wealth, most colonists were unprepared for the constant challenges they faced: drought, starvation, the threat of attack, and disease. With the help of stern leadership and a lucrative cash crop, the colony eventually succeeded.
Explanation:
Read upon this in 6th grade.
Hope this helps :)
Please answer the questions!
The ones that i answered were incorrect so pick the one that would be correct.
Will give brainlist to first answer!!!!!!!!!!!!!!!!!!
13 points!!!!!!!
Answer:
it would be a because it had no trade i hope this helps
Explanation:
Answer:
question 4 is B
Explanation:
What Protestant ideal helped influence federalism
a. tradition
b. individualism
c. salvation
d. self- governance
Answer:
Answer D self governance
Explanation:
Answer:
d
Explanation:
i can confirm it was right
What were THREE reasons that the English government desired to colonize North America?
to convert American Indians to Catholicism
to challenge the French fur trade in North America
to challenge Spanish control of land in the Americas
to gain control of natural resources in the New World
to enable poor English families to move to the colonies
Those are the answers.
A, D, E,
Answer:
A D E
Explanation:
i already know it isnt c, please help me.
Answer: D.........................................................................
I do think the answer is A.
Answer:
yeah I also think the answer is A
How might recent events in the United States have influenced the turnoutand the outcome of the elections
Answer:
The handlement of crisises and "wars" (Im not sure if whats happening in the middle east can be called wars) have Americans rethinking the leadership of our president and might make them change parties or canidates for the next election OR people might like how our president handles things and want him to stay in office.
Explanation:
I hope this is what youre looking for:)
How many Representatives come from each state?
Answer:
The answer is: Depends on the population or amount of people living in the state.
Explanation:
ALL of the colonies sent delegates to the Constitutional Convention
Question 1 options:
True
False
Answer:
False
Explanation:
Gerogia did not attend
1. Historically, what have American women had to fight for? (hint: think of their rights, respect, etc.)
2. What have women accomplished in the last century?
3. What do women still fight for today?
The Northwest Ordinance discussed slavery.....
Which statement from the passage is an opinion?
Read the passage from The Pillow Book.
"His Excellency, the Chancellor, wore a light violet Court
cloak, laced trousers of light green material, and a
scarlet under-robe. He faced towards us, leaning against
one of the pillars between the main part of the hall and
the veranda and fastening the cord round the neckband
of his cloak in a loose knot. At the sight of his beautiful
daughters he smiled with delight and chatted away in his
usual bantering fashion.
I glanced again at the Shigei Sha, who was looking
extraordinarily pretty. But, when I turned back to Her
Majesty and saw her tranquil expression, her charming
features which had recently taken on a more adult cast,
and her complexion which went so beautifully with her
scarlet clothes, I realized that no one in the world could
equal her."
O "His Excellency, the Chancellor, wore a light violet
Court cloak."
O "He faced towards us, leaning against one of the
pillars.
O"... fastening the cord round the neckband of his
cloak in a loose knot."
O "I realized that no one in the world could equal her."
ANSWER QUICKK PLSSS
Answer:
The answer is D: “I realized that no one in the world could equal her.”
Explanation:
I took the test!
sorry if its late, but hopefully this helps!!
Answer:
Its d! "I realized that no one in the world ould equal her"
Explanation:
I took the quiz :)
HELP ME
HELP ME
HELP ME
Which of the following is an effect of the revival of Confucianism during the Song Dynasty?
A.
the decline of trade with neighboring territories
B.
the importance of the civil service examination system
C.
the development of a powerful standing navy
Answer:
B i think if its not im sorry
Explanation:
WILL MARK BRAINLIST!!!
Can you complete the graph but in a way a 7th grader would write it? Thank you so much it will help a lot!
Answer:
do you still need the answer to this
Explanation:
What effect did the Diaspora have on the religion of Judaism?
Roger Bannister: The Barrier Breaker
Introduction
How do you overcome obstacles that seem impossible? Sir Roger Bannister, the first man to break the four-minute-mile record, knew what it was like to break barriers.
Learning a Passion
Roger Bannister was born in Harrow, England, in 1929. Since his parents couldn't afford to send him to college, he worked to win scholarships to study medicine at Oxford. Bannister had two loves: studying medicine and running track. He worked hard to do well at both. Because of his studies, Bannister had less time for track practice than other athletes. Most athletes trained at least six days a week. Bannister trained only two to three times a week. In the 1952 Olympic Games, Bannister ran the 1500m race but finished fourth. Many said this was due to his lack of training. Bannister decided it was time to get serious. He focused on doing what everyone in the world thought was impossible. He wanted to break the four-minute-mile barrier.
Setting a Goal
No one in history had ever run a mile in less than four minutes, although several had tried. For decades, physicians believed that running a mile too fast would cause heart failure. Bannister knew he could set a new world record by working hard. Bannister believed that pushing himself beyond the pain would make him a winner. That is just what Bannister did on May 6, 1954, at Iffley Road Track in Oxford. On a cold, wet track, Roger Bannister broke the four-minute-mile barrier with a time of 3:59.4. Two other runners helped him set a fast pace. Then Bannister relied on his training to run the first three laps of the track in 3:01. During the final lap of the race against the clock, Bannister knew he could finish the race in less than 59 seconds. He broke away from the other runners and flew down the last two curves of the track at record speed. As he crossed the finish line, he collapsed into the arms of his friend Reverend Nicholas Stacey. Bannister was out of breath and out of energy, but he knew he had broken the world record. Bannister accomplished a great moment in history that day.
After breaking the four-minute-mile barrier, Bannister competed in a few more races. He ran his personal record of 3:43.8 in the 1500m in the European Championship. That was Bannister's last race. In August of 1954, he retired at the age of 25 to focus on what he considered his true contribution to society—his research in the field of neurology, the study of the nerves and the nervous system.
Making a Difference
In 1975, two decades after his feat, Roger Bannister was knighted by the Sports Council of England. He had done what no man thought was possible. However, Bannister knew his athletic glory was fleeting. He felt that his work as a neurologist was the real accomplishment of his life. For over 40 years, he worked in neurology, helping patients who suffered serious neurological disorders. To honor his work and dedication as a neurologist, St. Mary's Hospital in London named a lecture hall after Dr. Bannister. In the lecture hall, the famous stopwatch used to time Bannister's mile is on display. In July of 2012, Bannister was honored to be elected as one of the Olympic torchbearers. He carried the flame into the Oxford track stadium that was named for him. Of his neurology career and his track achievements, as the greatest runner ever, Bannister claims that working hard is the secret to his success.
10
What can be inferred by referring to the timeline?
A.
Bannister was more well known as a neurologist than as a track and field star.
B.
Bannister did not value his time as a runner and never participated in sports again.
C.
Despite retiring from track and field at a young age, Bannister was still involved with sports throughout his life.
D.
After retiring from track and field at a young age, Bannister continued to run.
I think the answer is C cuz it just makes the most sense off of the article. Hope this helps!
What were the "head and master” statutes?
agreements made by the presidential candidates of 1824
treaties between the Louisiana government and foreign traders
laws created to ensure husbands controlled family property
negotiations between suffrage advocates and the Louisiana government
Answer:
Its C
Explanation:
When was the first Atlantic cable laid?
1 1866
2 1867
3 1873
4 1879
Will give 20 points pls hurry
Answer:
For question 1 its C and for 2 its B
Explanation:
Answer:
for the first one, i think A, and for the second one, i think B?
Explanation:
WILL MARK BRAINLIST!!!!!!
Can You PLEASSSEEEE tell me the second and last question to this? I'm literally gonna cry I have like 5 assignments due today in an hour. I forgot to mention this is texas history
Answer:how t.f should I know I didn’t do the lesson dam.
Explanation: I didn’t do the lesson
Answer:
1.The term is usually used to describe United States citizens who fomented insurrections in Latin America, particularly in the mid-19th century (Texas, California, Cuba, Nicaragua, Colombia). Filibuster expeditions have also occasionally been used as cover for government-approved deniable operations.
2.As independent thought and movements mounted in the period 1800 through 1821 aimed at the separation of Mexico from Spain, Texas and northern Mexico became a fertile target for filibusters from a number of countries and most commonly the bordering United States, a Spanish ally.
Explanation:
hope i helped
Which of the following does NOT describe agricultural conditions of the Southern Colonies?
rich, fertile plentiful farmlands
lengthy growing season
shortage of available farmlands
favorable climatic conditions
Answer:
Shortage of available farmlands
Explanation:
The Southern colonies had tons of room, and there was definitely no shortage of farmland.
One major physical feature in northern Mexico is the:
A. Mexican Plateau
B. Baja California Peninsula
C. Gulf of Mexico
D. Yucatan Peninsula
Answer:
gulf of mexico
Explanation:
if im being honest i dont rlly know the subject but the class its under is history SO THATS WHAT IM PICKING...C:
1. Define
Isthmus
Plateau
Archipelago
Continental shelf
Groundwater
Water Cycle
Evaporation
2. What continents are joined by the Isthmus of Panama?
3. What are the four basic types of landforms?
4. Where is freshwater found?
Answer:
wait what is question one
Explanation:
What did the Virginia Resolution propose?
Explanation:
The Virginia Resolution, authored by Madison, said that by enacting the Alien and Sedition Acts, Congress was exercising “a power not delegated by the Constitution, but on the contrary, expressly and positively forbidden by one of the amendments thereto; a power, which more than any other, ought to produce universal alarm because it is levelled against that right of freely examining public characters and measures and of free communication among the people, there on, which has ever been justly deemed, the only effectual guardian of every other right.
what were some strategies used by the labor unions to address the problematic working conditions of the time period.
Answer:
Death????/
Explanation:
What leading Georgian went from supporting farm rights to denying black rights?
WEB Dubois
Tom Watson
Tom Frank
Booker T Washington
Answer:
C
Explanation:
I remember seeing this question on brainly a while ago. I hope this helps!
briefly define Fahrenheit scale IN YOUR OWN WORDS! plz thnx <3
Answer:
A Fahrenheit scale is a temperature scale that is based on the freezing point of water. It uses the degree Fahrenheit as the unit. it was used by the physicist Daniel Gabriel Fahrenheit.
Answer:
Fahrenheit scale records temperature that establishes the boiling point of water at 212 and the freezing point at 32.
It was discovered by a person called Daniel Gabriel Fahrenheit