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
andrew11 [14]
3 years ago
9

9.1 x 10-31 kg.

Mathematics
1 answer:
Reptile [31]3 years ago
7 0
1 electron has a mass of 9.1 X 10-31 kg. How many electrons n does it take to make 1 kg?

(1 e)/(9.1 X 10-31 kg) = n/(1 kg)

So, n = 1.10 X 1030 electrons

Each electron has a charge of 1.6 X 10-19 C, where C stands for Coulombs. So, the n electrons have a charge of q = ne = (1.10 X 1030 electrons) X (1.6 X 10-19 C/electron) = 1.76 X 1011 C.
You might be interested in
The lifespan of a guinea pig is 8 years shorter than the lifespan of a puma. Write a subtraction equation that you could use to
KiRa [710]

Answer: p-8

Step-by-step explanation:first thins problem is impossible without knowing the lifespan of a puma. But if you knew it oh let’s say it was 20 you would subtract the puma by 8.

7 0
3 years ago
How many and what type of solutions does the equation have?<br><br> 2k² = 9 + 3k
anzhelika [568]

Answer:

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
HELP!!! ASAP
Mumz [18]
The answer is 12 percent change
3 0
2 years ago
Please help.
Ad libitum [116K]

Answer:  

In what article are you most likely to find the sentence “The coma streamed out until it formed a tail of dust and light”?

“Comets in the Sky”

“How to Punctuate Sentences”

“Water Under the Bridge”

“Medical Histories”

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Eunice wanted to save up for a mountain bike that costs £250. She baby-sits each week for 6 hours for £2.75 an hour, and does a
choli [55]

Answer:

Approximately 2 weeks

Step-by-step explanation:

Given data

Cost of bike=  £250

<em>Assuming she works for 6 days</em>

1.Babysitting

6*2.75=£16.5 per day

for 6 days

=16.5*6

=£99

2. Saturday Job

=£27.50

Total earnings for the week

=£27.50+£99

=£126.5 weekly

Hence it will take her

=250/126.5

=1.97 week

Approximately 2 weeks to save up the amount

3 0
3 years ago
Other questions:
  • Arjun deposited $30 in a savings account earning 5% interest, compounded annually to the nearest cent, how much interest will he
    14·1 answer
  • How do I find the missing pairs ?
    11·2 answers
  • What is the answer to 35/6
    10·1 answer
  • If 15% of 200 apples or bad how many apples are bad​
    12·1 answer
  • Help me in number 7 8 9 10 11 12 13 14
    11·2 answers
  • The domain of a quadratic function is all real numbers and the range is ys 2. How many x-intercepts does the
    13·1 answer
  • Four friends were born in consecutive years. The sum of their
    7·1 answer
  • Select all numbers that are irrational.
    7·2 answers
  • Use the graph to identify the zeros.
    6·1 answer
  • Find the missing value (x)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!