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
hram777 [196]
3 years ago
14

Find the period of an electromagnetic wave of wavelength 2.20 × 10–2 m. A. 1.36 × 1010 s c. 7.33 × 10–11 s b. 4.54 × 101 s d. 6.

60 × 106 s
Mathematics
1 answer:
vovangra [49]3 years ago
4 0

Answer:

7.33 * 10^-11 s

Step-by-step explanation:

Period, T = 1 / f

c = fλ

λ = 2.20 × 10^–2 m

c = speed of light = 3 * 10^8 m

f = c / λ

f = 3 * 10^8 ÷ 2.20 × 10^–2 m

f = (3/2.2) * 10^(8-(-2))

f = 1.364 * 10^10

T = 1/f

T = 1 / 1.364 * 10^10

T = 7.33 * 10^-11 s

You might be interested in
The top of the Boulder Dam has an angle of elevation of 1.2 radians from a point on the Colorado River. Measuring the angle of e
Nana76 [90]

Answer:

382.925 feets

Step-by-step explanation:

The solution diagram is attached below :

Converting radian measurement to degree :

radian angle * 180/π = degree angle

1.2 * 180/π = 68.755°

0.9 * 180/π = 51.566°

Height of dam is h:

Using trigonometry :

Tan θ = opposite / Adjacent

Tan 68.755° = h / x

h = x Tan 68.755° - - - (1)

Tan 51.566° = h / (155+x)

h = (155+x) tan 51.566° - - - (2)

Equate (1) and (2)

x Tan 68.755 = (155+x) Tan 51.566

x Tan 68.755 = 155tan 51.566 + x tan 51.566

x Tan 68.755 = 195.32311 + x Tan 51.566

x Tan 68.755 - x Tan 51.566 = 195.32311

x(tan 68.755 - tan 51.566) = 195.32311

x * 1.3120110 = 195.32311

1.3120110x = 195.32311

x = 195.32311 / 1.3120110

x = 148.87307

Using :

h = x Tan 68.755

h = 148.87307 * tan(68.755)

h = 382.92539

h = 382.925 feets

5 0
3 years ago
Repeated decimals can be written as an infinite geometric series to help convert them to a fraction. Consider the repeating deci
Oksi-84 [34.3K]

Answer:

a1= 0.23

r=0.01

:)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve. for. c m=c-s
podryga [215]

Answer:

s-c= m  c

Step-by-step explanation:

8 0
2 years ago
Miranda goes shopping for some new cowgirl boots to wear for her concert. She finds some that are $225.60, and they are on sale
Svetlanka [38]

Answer:

$180.48

Step-by-step explanation:

225.60 * .8  = 180.48

6 0
3 years ago
Read 2 more answers
PLEASE I NEED HELP THX :) <3
SVETLANKA909090 [29]

Answer: 5/2

Step-by-step explanation:

Plug in two points from the table into the formula y2-y1 divided by x2-x1

I hope this helps.

6 0
3 years ago
Other questions:
  • WILL MARK BRAINLIEST!!!
    13·1 answer
  • The city of Odessa, Texas is building a wheelchair ramp to make their courthouse accessible for persons in a wheel chair. The Am
    10·1 answer
  • Factor completely: x2 - 10x + 25
    14·2 answers
  • The lateral area of a right prism having a perimeter of 25 inches and a height of 5 inches is?
    10·1 answer
  • Jake spent $60 on prizes for the school carnival. Each prize cost $6. He also bought 30 stickers to donate. How many items did J
    5·1 answer
  • If my teacher has 45 hair pieces and she cuts 38 how many does she have left
    5·1 answer
  • WILL GIVE BRAINLIEST TO CORRECT ANSWER(S)!
    11·1 answer
  • Michael made 4 trays of tuna for the party. The people at 3/5 of the
    5·1 answer
  • What is the circumference of the circle?
    6·2 answers
  • Help i need for tomorrow
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!