Item 2
Read the excerpt from "Marie Curie and the Discovery of Radioactivity."

It was a thrilling time to be a scientist. The year the Curies were married, 1895, a German physicist named Wilhelm Roentgen discovered a new kind of ray that could be used to “see” inside people and photograph their bones. He called them X rays. The X stood for “unknown.”

Not long after, the French physicist Henri Becquerel discovered that uranium let out another type of ray. These rays were weak compared to X rays, and even Becquerel himself did not think his discovery of much importance. But Marie found the rays fascinating. Where did they come from? How were they produced? She decided to examine these mysterious “Becquerel rays” for her advanced research.

What is the author’s purpose in mentioning Wilhelm Roentgen and Henri Becquerel in "Marie Curie and the Discovery of Radioactivity"?

to describe important mentors for Curie

to explain who inspired Curie to study rays

to describe the difference between uranium and radium

to explain the difference between an X ray and a Becquerel ray

Answers

Answer 1

Answer:

to explain who inspired Curie to study rays

Explanation:

Answer 2

The main purpose of author in mentioning Wilhelm Roentgen and Henri Becquerel in "Marie Curie and the Discovery of Radioactivity" was to explain who had inspired Curie to study rays.

What is "Marie Curie and the Discovery of Radioactivity"?

Marie and Pierre Curie successfully isolated radioactive radium salts from the mineral pitchblende in their laboratory on April 20, 1902. In 1898, the Curies discovered existence of the radium and polonium in their research.

Marie Curie married the French physicist Pierre Curie in 1895. She shared the 1903 Nobel Prize in Physics with him and physicist Henri Becquerel for the work on developing the theory of "radioactivity".

Curie soon began using her work to save lives of people. Her discoveries of radium and polonium were of great importance. As the elements were radioactive which meant that when atoms broke down, they emitted invisible rays that could easily pass through solid matter and conduct electricity.

Curie decided to study about the rays emitted by uranium compounds. It's ability was  to fog a photographic plate even though the rays were emitted in darkness. It was then accidentally discovered in 1896 by physicist Henri Becquerel.

To know more about radioactivity, refer

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Related Questions

Which of these completes the compound sentence?
The Japanese
a. invest in research and development for a

c. sushi rolls were made with sticky rice, and variety of robotic engineering projects they were topped with black sesame seeds

b. tea ceremony is a cultural ritual that has

d. all of these
been practiced for centuries
Please select the best answer from the choices provided

Answers

Answer:

A

Explanation:

Because invest in research and development for a.

Answer:

A

Explanation:

took the unit review test :]

How did the geography of an area influence the way early Texas Native Americans lived?

Answers

Answer: Geography of an area influenced the way early Texas Native Americans lived because of many of the farmers had land. Without the right conditions, their crops would not have been able to grow and the farmers would not have been able to produce anything.

Explanation:

Part 1: Geography influencing normal life because of vegetation, the water cycle, land formation, and how the people will adapt to that certain climate.

Part 2: Because of the Texas farmers and agriculture. Of course, the farmers help produce fresh produce.

Hope this helps!

HELP ASAP !!!!!
Based on your results from the personal online study skills assessment in the online content, what specific study skills do you plan to focus on, or improve, with the help from this class? Why are these particular skills important to you?
*for the personal assessment I Put that I wanted to improve my English language to be more academic*

Answers

Answer:

Some specific study skills that you should work on are reading books with a higher comprehension level to improve your vocabulary, which will further help your english. This is importat so you sound like you know what you are talking about, and you do know what you are talking abut.

Explanation:

hope that helped!! :)

6. Which image would be best to use on a yearbook page about Christopher Reeve to illustrate an (1 point) award for "Most Likely to Make an Impact on Society"? O Reeve flying a plane O Reeve acting in a play O Reeve taking an acting class Reeve receiving an award. HELP ASAP​

Answers

Answer:

Reeve receiving an award.

Explanation:

A yearbook is a book which publishes information, statistics, etc. A yearbook is published annually.

The yearbook consists of images commemoration or celebrated people, who have achieved something.

The image that will best be used to illustrate Christopher Reeve's contribution is him recieving an award. An image of Reeve recieving an award reveals that he has done something and achieved an award.

Thus the last option is correct.

Answer:

Reeve receiving an award.

Explanation:

Trust me!

Can someone help me for D and E

Answers

Taste: Salty
Touch: Dry Wood

Answer:

D: i tasted the salty sweat run into my mouth.e: every time i touched the floor it was very hot

Explanation:

Just took the test hope this helps

These is a book on the table ,....?​

Answers

Is there is a book on the table?

Answer:

Correct way to write this sentence:

Is there a book on the table?

Instead of:

These is a book on the table?

Explanation:

These should be there.

And Is should be the first word in the sentence.

Hope this helped you!

What direct impact did the efforts of individuals like Ava Deer have

Answers

Answer: The impact that the efforts of individuals like Ava Deer have is, they led to peaceful protests, such as the occupation of Alcatraz Island.

Explanation:

Answer:

They led to peaceful protests, such as the occupation of Alcatraz Island. Hope this helps!

Explanation:

What does the abbreviation “ref.” stand for?

a.
Referral
c.
Refugee
b.
Reference
d.
Referendum

Answers

Answer: b

Explanation:

Answer:

Reference

Explanation:

What beliefs and rituals are revealed through the story balboa

Answers

Answer:  It's a Hawaiian religion with mythologies included a belief in ancient giants

plz mark brainliset

11. Watch the clep or ......!

α. you'll be falling
b. you're falling
c. you'll fall
d. you will have fallen

12. "We must hurry!"
"Why? What time .......?"

a. the bus is going to leave
b. leaves the bus
c. the bus leaving
d. does the bus leave

13. I expect Ryan ....... with the present you bought him.

a. will please
b. will be pleased
c. is pleasing
d. has pleased

14. My parents ...... let me go to the movies tonight.

a. won't
b. haven't
c. aren't
d. don't

15. "We've decided to go sailing on Saturday."
"I'm afraid I ...... you - I'll be busy."

a. won't be joining
b. won't have joined
c. not going to join
d. haven't joined

16. "Are you still interviewing people for the job?"
"Yes, but by Friday, the best candidate ......."

a. will be choosing
b. are chosen
c. will have been chosen
d. are going to choose

17. "Do you think you'll be happy at college?"
"I don't know but time .......

a. tells
b. will tell
c. is telling
d. is going to tell

18. Tom's ...... here until tomorrow.

a. due not to get
b. due to not getting
c. not due to getting
d. not due to get

19. "I need some help with packing up the house."
"Sorry, I...... late tomorrow."

a.will work probably
b. probably will be worked
c. will have probably worked
d. will probably be working

20. The hotel rooms won't ...... by 10 o'clock in the moming.

a. be cleaning
b. have cleaned
c. have been cleaned
d. have been cleaning​

Answers

Answer:

11 c

12 d

13 b

14 a

15 a

16 c

17 b

18 d

19 d

20 c

11) c
12)d
13)b
14)a
15)a
16)a
17)d
18)d
19)d
20)a

This sentence is complex: The cat's hair, dull and gray, is falling out.


Please select the best answer from the choices provided

T
F

Answers

Answer:

T

Explanation:

Answer:

false

Explanation:

Which One Is It? Ethos Pathos or Logos
You cannot put a price on your safety.That is why you should buy this state-of-the-art home security system.

Answers

Answer:

pathos

Explanation:

can somebody help me with writing an essay for English 9A of my portfolio critical response essay of other worlds

Answers

Answer:

Critical response essays involved summarizing and analyzing another author's work. ... The essay begins with an introduction to the text studies, alongside the main argument or point that you're making. A summary of the work is then provided in order to give the reader a sense of what the text is about.

Explanation:

This is an ex
Rhetoric 11:Question 9
The facts in the first sentence of paragraph 3 ("According to a 2010
report...poor economy") could best be described as all of the following
EXCEPT
On March 23
Care Act into
tax cuts to an
to individuals
thirty-two mill
the act will re
steps in the
Select one:
critical
d
disappointing
O
disturbing
This much-
health insura
government
the governm
health insura
provided mo
provided by
were trying
lucrative hes
Capital Hill)
companies
government
O
logical
O
ironic
According to
one million

Answers

Answer:Select the aphorism that best expresses the following sentiment: Be ... This is an ex Rhetoric 11:Question 9 The facts in the first sentence of paragraph 3.

Explanation:

Which of the following statements about themes is true?

A. Literary works by different authors may share the same themes.

B. Themes describe the lives of authors.

C. Authors add themes to their works to make them more suspenseful.

D. Poems, unlike short stories, do not have themes.

7th grade work!!! HELPP ill brainlist!! :))

Answers

Answer: C

Explanation:

When writing a story theme can be everything, like if your writing a scary story but use a happy theme it will come off wrong and not be scary. Themes can make a story more suspenseful if that is the goal of the story.

how is young Goodman brown different than of Plymouth plantation

Answers

Answer:

In his short story, “Young Goodman Brown,” Nathaniel ... In the accounts of Rowlandson and Bradford, we see a much different ... “Of Plymouth Plantation” are much less intense than those committed in “Young Goodman Brown.

Explanation:

In his short story, “Young Goodman Brown,” Nathaniel ... In the accounts of Rowlandson and Bradford, we see a much different ... “Of Plymouth Plantation” are much less intense than those committed in “Young Goodman Brown.

What is the best revision of the error in sentence one? On her way home from practice Rebecca found a gold man’s watch

Answers

As Rebecca was headed home, she had unexpectedly found a gold man’s watch.

Answer:

B. man ś gold watch.

Looking at the gold links on the band, …

C. Rebekka thought the watch seemed expensive.

i just did on Ed

Explanation:

Read this sentence from paragraph 6.
But he worked, as his companions, the wits, put it, like a horse
in a mill
What does the underlined phrase mean as it is used in the sentence?
A.) with mistakes
B.) with dedication
C.) with resentment
D.) with confusion

Answers

The underlined phrase as it is used in the sentence means:

B. With dedication

What does the underlined word mean?

The underlined phrase in this sentence is like a horse in a mill. A horse in a mill is typically known to work very hard and with immense dedication. The same can be said of the person being referred to in the sentence above.

What the speaker is trying to imply by comparing the individual with a hose in a mill is that, just like the horse, the person also works very hard and with dedication. So, option B is right.

Learn more about dedication here:

https://brainly.com/question/38521

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How does the narrator of the poem explain the players' ability to play basketball?
They exercise to get in shape
They have an excellent coach.
It's a result of something he can't quite explain
They are magic
1
In slam,dunk,&hook

Answers

Answer:

The correct option is C) It's a result of something he can't quite explain

Explanation:

In line 18, he makes reference to their metaphysical nature when the girls cheered.

In lines 35 and 36, he states that the players on the court executed moves they never knew they had.

Putting those two references together, it can be said they, indeed, the players ability to play basketball is attributed more to things they couldn't explain.

Cheers

Which is the best synonym for the word enumerate?
A.approve
B.list
C.subtract
D.Think

Answers

Answer:

list

Explanation:

the best synonym for the word enumerate is list

Select the statement that shows contrast.

Answers

Answer:

The statement that shows contrast is:

Conversely, narratives are often built as a creative fiction.

Explanation:

In order to show contrast we need to use sentence connnectors such as "conversely, however, on the other hand".

In this case, the sentence connector "conversely" is used to contrast the relationship between two items or situations (argumentative vs. narrative writing).

Is this what you were looking for?

HELP ME PLZZ I NEED HELP WITH THIS !!!!

Answers

Answer:

I’d guess plays were written and acted by the children

sorry if it ends up being wrong

MARK AS BRAINLIEST PLEASE HELP ME

Answers

Answer:

she will hide the evidence from men

Explanation:

she fears the men will dismiss her findings

Please only answer if you are one of my students. How many chapters are you sposed to be reading, what chapter are you reading till, and what book are we reading next?

Answers

Supposed*
You had a grammatical error and I had to fix it considering you’re an English teacher.

Answer:

supposed*

Explanation:

sorry i wanted to fix the grammar like really bad lol but have a blessed day

25 POINTSSS The four Indians laughed more loudly, while even the man who had been bitten began to laugh. They surrounded [White Fang] and laughed at him, while he wailed out his terror and his hurt. In the midst of it, he heard something. The Indians heard it, too. But the cub knew what it was, and with a last, long wail that had in it more of triumph than grief, he ceased his noise and waited for the coming of his mother, of his ferocious and indomitable mother who fought and killed all things and was never afraid. She was snarling as she ran. She had heard the cry of her cub and was dashing to save him. Which best states the men’s perspective in the excerpt? A)The men are amused by White Fang’s fear and confusion. B)The men are concerned about White Fang’s safety. C)The men are angry at White Fang for biting one of them. D)The men are afraid of White Fang’s wailing sounds.

Answers

Answer:

a

Explanation:

Answer:

its not a its b

Explanation:

took the assignment

Select all the adjectives. Don't include a, an, or the.
The astronauts were not easygoing like Supergirl
was.

Answers

Answer:

Easygoing

Explanation:

The only adjective in the given sentence is easygoing (= relaxed and casual in style or manner).

The is a definite article.

Astronauts is a noun.

Were is a verb.

Not is an adverb.

Like is a conjunction.

Supergirl is a noun.

Was is a verb.

Read the sentence.

Henry David Thoreau, often known as the father of environmentalism wrote the book entitled Walden.

Which revision should be made so that the sentence is properly punctuated?

place a dash after “environmentalism”
remove the comma after “Thoreau”
place parentheses around “entitled Walden”
add a comma after “environmentalism”

Answers

Answer:

A comma after "environmentalism"

Explanation:

Because the comma would provide a proper clause

Answer: D: Add a comma after "environmentalism".

Explanation: Trus me bro
I got it correct, maybe brainliest? ;)

HELPPPP!!!
God's promises to man and His requirements for man to receive those promises never change.


True or False

Answers

Answer:

True

Explanation:

i hope this helps

Do you think the coaching staff has been fair in their treatment of bobby​

Answers

Explanation:

what this question mean!??

How are you feeling today? A. Good B. Okay C. Bad

Answers

C. bad how about you?

Answer:

A and always A

Explanation:

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