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
mariarad [96]
3 years ago
13

How many photons with 10 ev are required to produce 20 joules of energy?

Mathematics
1 answer:
alexira [117]3 years ago
7 0
1 joule = 6,242e+18ev

20 joule = 20 joule *6,242e+18 ev/joule =1,248e+20 ev

1,248e+20 ev / (10 ev / photon) =1,248e+19 photons.



You might be interested in
PLEASE HURRY IM TIMED, The perimeter of a rectangular swimming pool is 70 yards. Its length is 25 yards. Which of the following
kolezko [41]

I thik the option C should be used.

5 0
1 year ago
Read 2 more answers
A square patio has an area of 135 square feet. How long is each side of the patio to the nearest tenth?
Kryger [21]
11.6 because the square root of 135 is 11.61885.... and when you check it is approximately 135 because 11.6 *11.6 = 134.56, which can be rounded to 135
8 0
3 years ago
What is the inverse of the function f(x)= x +3
pshichka [43]
Hello,

if f(x)=y=x+3

x=y+3==>y=x-3

f^(-1) (x)=x-3 is the inverse function of f(x).
5 0
2 years ago
Simplify the expression -15m + 9m
natima [27]

Answer:

-6M

Step-by-step explanation:

djdurjjrfjfrjrjrjrf

8 0
2 years ago
Write in descending order.420t + 201 to the 3rd power -210t to the 2nd power
nexus9112 [7]

To answer this, we need to see the polynomial. Descending order is in a way that the first term of the polynomial will be three, the second (in descending order, two....and so on).

420t+20t3-210t2

In descending order is:

20t^3 - 210t^2 + 420t

So, the option is number two.

4 0
8 months ago
Other questions:
  • 6-7-(-4)-3<br> Help me please!<br> I know the answer is 0 but I need a step by step explanation
    6·2 answers
  • Help! Help! Help! Help!
    7·1 answer
  • What is the difference between 0.0032 and 0.32? and which one is greater?
    7·2 answers
  • How do you solve the equation z-2z-3=-7
    12·1 answer
  • Need help fast, will give brainliest!​
    11·1 answer
  • dylan invested $600 in a savings account at a 1.6% annual interest rate. He made no deposits or withdrawls on the account for 2
    8·1 answer
  • Solve for x: x/5 = 75
    15·2 answers
  • Jeff is buying books at a used bookstore he wants to approximate the total cost of his purchase before checking out which amount
    10·1 answer
  • Graph x=4y , x+y=7.0
    8·2 answers
  • A plant produces sport drinks, which must be within 0.15 fluid ounces of the advertised 10 fluid ounces on the label. If x repre
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!