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
tresset_1 [31]
3 years ago
13

If a microwave oven produces electromagnetic waves with a frequency of 2.70 ghz, what is their wavelength?

Physics
1 answer:
MatroZZZ [7]3 years ago
5 0
Ok this one is pretty straight forward :) This is what we know:

1. 2.7GHz is how many vibrations in 1 second. (2.7 x10^9 Hz)
2. Light always has a constant speed 2.9 x10^8 meters per second.

Therefore to find out the length of one of those vibrations you just divide        2.9 x10^8 by 2.7 x10^9
which looks like this in your calculator:
290000000 / 2700000000
= 0.107m
= 10cm
You might be interested in
A 60cm long string of an ordinary guitar is tuned to produce the note a4 (frequency 440hz) when vibrating in its fundamental mod
pishuonlain [190]

Answer:

0.78 m

Explanation:

The relationship between wavelength and frequency of a wave is given by

v=f \lambda

where

v is the speed of the wave

f is the frequency

\lambda is the wavelength

For the sound wave in this problem, we have

f=440 Hz is the frequency

v = 344 m/s is the speed of sound in air

Substituting into the equation and re-arranging it, we find the wavelength:

\lambda=\frac{v}{f}=\frac{344 m/s}{440 Hz}=0.78 m

8 0
3 years ago
Read 2 more answers
Which occurrence would lead you to conclude that lights are connected in a
skelet666 [1.2K]

Answer:B When one bulb burns out, all the others lights stay lit.

Explanation:

3 0
3 years ago
From Smallest to Largest <br> Moon<br> asteroid <br> meteorite <br> meteoroid
Yanka [14]
Meteorite meteoroid asteroid moon give brainlest please
7 0
2 years ago
Read 2 more answers
What is the force of repulsion between two points positive charges 5 and 8 separated at a distance of 0.02m apart
Zinaida [17]

Explanation:

F =(frac{1}{4{pi}{varepsilon}_o}) x (frac {q_1q_2}{r^2})

F =(frac {5 {times} 10 {times} 8 {times} 10}{0.002 {times} 0.002}) x 9 x 10

F = 900N

4 0
2 years ago
Compare blue and red light from the visible spectrum. which has: the longer wavelength? the greater frequency? the greater energ
Hitman42 [59]
1) By looking at the table of the visible spectrum, we see that blue light has a wavelength in the range [450-490 nm], while red light has wavelength in the range [620-750 nm]. Therefore, red light has longer wavelength than blue light.

2) The frequency f of an electromagnetic wave is related to its wavelength \lambda by the formula
f= \frac{c}{\lambda}
where c is the speed of light. We see that the frequency is inversely proportional to the wavelength, so the shorter the wavelength, the greater the frequency. In this case, blue light has shorter wavelength than red light, so blue light has greater frequency than red light.

3) The energy of the photons of an electromagnetic wave is given by
E=hf
where h is the Planck constant and f is the frequency. We see that the energy is directly proportional to the frequency, so the greater the frequency, the greater the energy. In this problem, blue light has greater frequency than red light, so blue light has also greater energy than red light.
6 0
2 years ago
Other questions:
  • What burns quicker, white or colored candles?
    7·1 answer
  • Before hanging new William Morris wallpaper in her bedroom, Brenda sanded the walls lightly to smooth out some irregularities on
    14·1 answer
  • What is a substance?
    6·1 answer
  • A simple generator is used to generate a peak output voltage of 25.0 V . The square armature consists of windings that are 7.0 c
    8·1 answer
  • Kyle, a 95.0 kg football player, leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.
    5·1 answer
  • Describing Forms of Energy
    8·1 answer
  • Which of the following statements are true regarding electromagnetic waves traveling through a vacuum? (Select all that apply.)
    8·2 answers
  • Evelynn is measuring the pitch of a piano note. What unit of measurement is she most likely recording her value in? hertz decibe
    11·2 answers
  • Speed<br><br> Is speed a vector? Why or why not?
    6·2 answers
  • Two different sources of radiation give the same dose equivalent in Sv. Does this mean that the radiation from each source has t
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!