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
Mila [183]
3 years ago
8

The mass of an electron is approximately 9.11 × 10 -28 grams. Find the mass of 401,000,000 electrons. 3.65311 × 10-19 grams 3.65

311 × 10-18 grams 3.65311 × 10-17 grams 3.65311 × 10-20 grams
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
4 0

Answer:

Total\ Mass = 3.65311 * 10^{-19} grams

Step-by-step explanation:

Given

Mass = 9.11 * 10^{-28}g

Required

Determine the mass of 401,000,000 electrons

To do this, we simply multiply the mass of 1 electron by the number of electrons.

This gives:

Total\ Mass = 401,000,000 * 9.11 * 10^{-28}

Total\ Mass = 3653110000 * 10^{-28}

Express 3653110000 as a standard form

Total\ Mass = 3.65311 * 10^9 * 10^{-28}

Apply law of indices:

Total\ Mass = 3.65311 * 10^{9-28}

Total\ Mass = 3.65311 * 10^{-19}

Hence, the mass of 401000000 electrons is 3.65311 * 10^{-19}\ grams

You might be interested in
Which of the following is a quadratic function?
Fudgin [204]

Answer:A is a quadratic function

Step-by-step explanation:

A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero. If you solve the function, y= 2x^2+x-6.

6 0
3 years ago
Plzz complete #’s 1, 3, 5, 7, and 9 first person with all correct answers will get brainliest
Anarel [89]

try using the app Photomath for numbers 1-3!

6 0
3 years ago
Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the
STatiana [176]
480 pennies.

25% are dated before 1980, therefore:
1200(total):100 = 12 (1%)
12(1%)x25 = 300 (25%)

35% are dated from 1980 to 2000, therefore:
12(1%)x35 = 420 (35%)

25% are dated before 1980, 35% are dated from 1980 to 2000 and the rest are dated after 2000.
25% + 35% = 60%.
300(25%) + 420(35%) = 720.
60% = 720.
100%-60% = 40%.
40% is the amount of pennies that are dated after 2000.

The total (100%) of the pennies is 1200.
We also know that 60% of the total (1200) is 720.

1200(100%) - 720(60%) = 480(40%).

Therefore, the amount of pennies dated after 2000 in Russell’s Collection is 480.
7 0
3 years ago
I don't know what the answer is to divide 180 in a ratio of 4:5:9
Karolina [17]
Hello there,

First you need to add together the numbers.
4+5+9 = 18
Divide the total by this,
180 / 18 = 10
Multiply each number by 10.
40:50:90.

Hope This Helps You!
Good Luck Studying :)
4 0
3 years ago
Read 2 more answers
Use the fraction model to multiply: three multiplied by three fifths. Leave your answer as an improper fraction.
Katena32 [7]

Answer:

it is six fifths your welcome

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Tickets to the concert were 2.50 for adults and 1.00 for students. 1,200 was collected and 750 tickets were sold.
    9·1 answer
  • 2/1 what is division
    5·2 answers
  • An experiment consist of drawing 1 card from a standard 52 -card deck. Let E be the event that card drawn is a 2. Find P(E').
    10·1 answer
  • Which of the following are examples of statistical questions?
    11·1 answer
  • Find the value of x for which abcd must be a parallelogram 3x 4x-5
    8·1 answer
  • Find the slope intercept form of the line whose slope is 6 and that passes through the point (-5,10). What is the equation?
    6·1 answer
  • Express the sum in simplest form. [1/x] + [1/y]
    6·2 answers
  • Malcolm uses a marker to draw a straight line on a piece of paper. The line is 23 ft long. He wants to divide the line into sect
    7·2 answers
  • Which equation represents a line which is perpendicular to the line y=-\frac{1}{8}x+3
    8·1 answer
  • A map of a public park shows a circular pond. There is a bridge along a diameter of the pond that is 0.55 mi long. You walk acro
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!