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
barxatty [35]
3 years ago
15

Your local AM radio station broadcasts at a frequency of f = 1100 kHz. The electric-field component of the signal you receive at

your home has the time dependence E(t) = E0 sin(2πft), where the amplitude is E0 = 0.62 N/C. Radio waves travel through air at approximately the speed of light.
a) At what wavelength, in meters, docs this station broadcast?
b) What is the value of the radio wave's electric field, in newtons per coulomb, at your home at a time of t = 3.1 μs?
Physics
1 answer:
Lina20 [59]3 years ago
6 0

Answer:

(a) 272.73 m

(b) 0.338 N/C

Explanation:

frequency, f = 1100 kHz = 1100 x 1000 Hz

E(t) = Eo Sin(2πft)

Eo = 0.62 N/C

(a) Velocity of light, c = 3 x 10^8 m/s

wavelength, λ = c / f = (3 x 10^8) / (1100000) = 272.73 m

Thus, the wavelength is 272.73 m.

(b) at t = 3.1 microsecond = 3.1 x 10^-6 s

E = Eo Sin (2 π ft)

E = 0.62 Sin (2 x 3.14 x 1100 x 10^3 x 3.1 x 10^-6)

E = 0.62 Sin (21.4148)

E = 0.62 x 0.5449 = 0.338 N/C

Thus, the electric field at t = 3.1 microsecond s 0.338 N/C.

You might be interested in
NEED HELP PLEASEEE 15 POINTS
Nezavi [6.7K]

Answer:

c

Explanation:

thamjs

7 0
3 years ago
Read 2 more answers
What time will the lunar eclipse happen central time?.
alexandr402 [8]
It was about 9:30 p.m. sorry if the answer is wrong
7 0
1 year ago
The si base unit for length is the
Naya [18.7K]
The meter is the S.I.unit for length. 
8 0
3 years ago
Show that Ns is the same as kgmls.<br>​
Minchanka [31]

1 N = 1kgm/s²

then,

1Ns = 1kgm/s² * s

1Ns = 1kgm/s

Hence shown.

3 0
2 years ago
How fast would a 2000kg car need to be traveling to have the same momentum has a 3000kg truck driving at 18m/s?
Marrrta [24]
p = mv = 3000  * 18 = 2000 * x

solve for x.
5 0
3 years ago
Other questions:
  • A woman is standing in the ocean, and she notices that after a wave crest passes, five more crests pass in a time of 54.0 s. The
    12·1 answer
  • Consider two mass-less springs connected in series. Spring 1 has a spring constant k₁, and spring 2 has a spring constant k₂. A
    6·1 answer
  • If you hold your arm outstretched with palm upward, the force to keep your arm from falling comes from your deltoid muscle. assu
    14·1 answer
  • Which of the following statements is true? (3 points) Science has a generally accepted theory for how the universe began. Scienc
    7·1 answer
  • The idealized body that emits the maximum amount of radiation at a given temperature and absorbs all the radiation incident on i
    7·1 answer
  • A block with mass m =7.4 kg is hung from a vertical spring. when the mass hangs in equilibrium, the spring stretches x = 0.22 m.
    8·1 answer
  • The force between two very small charged bodies is found to be F. If the distance between them is tripled without altering their
    9·1 answer
  • During a long jump, an Olympic champion's center of mass rose about 1.2 m from the launch point to the top of the arc. 1) What m
    6·1 answer
  • A 350 −Ω resistor and a 6.40 −μF capacitor are connected in parallel to an ac generator that supplies an rms voltage of 220 V at
    13·1 answer
  • Find the volume of an object with a density of 3.2 g/mL and a mass of 12 g.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!