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
Galina-37 [17]
3 years ago
6

The speed of light is 3.0*10^8 m/s. Red light has a wavelength of 7 *10^-7 m. What is its frequency?

Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0
Frequency : f=c/lambda=3.0e8/7e-7=3/7*10^15 Hz~4.3*10^14 Hz=430THz
You might be interested in
Why is there a 1/2 in this formula for the area of a trapezoid?
aleksandrvk [35]

A simple answer is that any given trapezoid with height h and length of the parallel lines a and b, is half of a parallelogram with an area of (a+b) x h. Since the trapezoid is half of this, it is h(a+b)/2

7 0
2 years ago
Forty of Dan's 50 answers were correct, what percent of Dan's answers were correct?<br>​
Allushta [10]

Answer: 80%

Step-by-step explanation:

40/50 = 80/100 = .8 then move decimal over 2 places to the right for percent. .8 to 8.0 to 80.0

4 0
2 years ago
Read 2 more answers
kayla bought h number of hats for $13.25 each.if she has $50 dollars to spend ,how many hats could she have bought?
shutvik [7]
4 is the answer to your question
7 0
3 years ago
bruh its not letting me see any answerssss idk whyyy pleasee hellppp i click the see answers and when i scroll down i see nothin
ipn [44]

Answer:

same i cant see any of the answers but sometimes the answers are in the questions. so just read the question over again and maybe it will be there.

Step-by-step explanation:

4 0
3 years ago
Please help and explain very easy good luck
Mars2501 [29]

Answer:

-76

Step-by-step explanation:

A positive digit multiplied by a negative digit will result as a negative digit.

So,

6 · -8 = -48

Now if there is a problem where a number is added by a negative digit number, you turn the "plus" sign into a "negative" sign.

So,

- 48 + (- 28)

-48 - 28

If you subtract a negative by a negative, the answer will be negative BUT you have to ADD those two negative digits together and put the negative sign after.

- 48 - 28 = -76

7 0
3 years ago
Read 2 more answers
Other questions:
  • 7) Find the slope of the graph of the equation 3x+15y=25.<br><br> *Plz, Plz, Plz show your work.*
    11·1 answer
  • Is an angle that is greater than 90 degrees is acute True or False
    11·2 answers
  • Five students equally share 1/2 of a pizza.How much of a whole pizza did each student eat
    12·1 answer
  • A pile of newspaper was 17 3/4 inches high. Each consecutive week for the next 5 weeks the height of pile increase by 8 7/12 inc
    13·1 answer
  • The function -6t^2+5t+56=h is used to calculate the amount of time (t) in seconds it takes for an object to reach a certain heig
    6·1 answer
  • Pls help Suppose 30=a×60. What is 30a ?
    5·2 answers
  • Pls help urgently extra points and mark brainlist
    12·1 answer
  • Make y the subject of the following equation.
    10·2 answers
  • A mountain trail will cover 4,855 feet vertically over a horizontal distance of 17,625 feet.
    9·1 answer
  • The perimeter of a rectangle is 78 cm. If the length is 24 cm, how wide is the rectangle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!