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
lisov135 [29]
3 years ago
16

Which is the correct formula for finding the frequency of an electromagnetic wave? f = c – f = f = + c f =

Physics
1 answer:
liubo4ka [24]3 years ago
6 0
The answer for the online test is going to be the last one, D
You might be interested in
The three forces shown act on a particle. what is the direction of the resultant of these three forces?
melisa1 [442]
Missing figure: http://d2vlcm61l7u1fs.cloudfront.net/media/f5d/f5d9d0bc-e05f-4cd8-9277-da7cdda3aebf/phpJK1JgJ.png

Solution:
We need to find the magnitude of the resultant on both x- and y-axis.

x-axis) The resultant on the x-axis is
F_x = 65 N\cdot cos 30^{\circ} - 30 N - 20 N\cdot sin 20^{\circ} = 19.45 N
in the positive direction.

y-axis) The resultant on the y-axis is
F_y = 65 N \cdot sin 30^{\circ} - 20 N \cdot cos 20^{\circ} = 13.70 N
in the positive direction.

Both Fx and Fy are positive, so the resultant is in the first quadrant. We can find the angle and so the direction using
\tan \alpha =  \frac{F_y}{F_x} = \frac{13.70 N}{19.45 N}=0.7
from which we find 
\alpha=35^{\circ}
7 0
3 years ago
Plzzz help me will mark brilliant​
Setler79 [48]

Answer:

i hope it helped U

stay safe stay happy

3 0
3 years ago
Which one of the following substances is a liquid fuel used in rocket engines?
melomori [17]

There are none on the list you included with your question.

8 0
3 years ago
Read 2 more answers
Do you know any good books about physics and math?​
horrorfan [7]
What Is Mathematics? Is a book about math


A book about physics /A Brief History of Time
5 0
3 years ago
If the work required to move a 0.35 c charge from point a to point b is 125 j, what is the potential difference between the two
valentina_108 [34]
Using W = qV  =>  V = W/q


7 0
3 years ago
Other questions:
  • Polar molecules have ionic bonds.<br> True<br> False
    6·1 answer
  • Which is the appropriate unit of measurement for pitch?
    5·1 answer
  • For when white light is passed through a diffraction grating, the color closest to the center bright spot corresponds toa. Yello
    14·1 answer
  • All of the following are stages of change EXCEPT
    13·1 answer
  • What system includes oceans, lakes, rivers, and groundwater?
    11·2 answers
  • Entropy is the amount of heat a system releases. true or false?​
    12·2 answers
  • A navigational beacon in deep space broadcasts at a radio frequency of 50 MHz. A spaceship approaches the beacon with a relative
    6·1 answer
  • Why is the sky blue?
    15·2 answers
  • PLEASE HURRY!!!
    15·1 answer
  • What are the advanced warning systems for hurricanes, and how do they work?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!