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
DedPeter [7]
3 years ago
11

An 800 kHz radio signal is detected at a point 3.2 km distant from a transmitter tower. The electric field amplitude of the sign

al at that point is 320 mV/m. Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. The magnetic field amplitude of the signal at that point, in nT, is closest to:
Physics
1 answer:
hammer [34]3 years ago
3 0

Answer:

1.07 nT

Explanation:

We know that E/B = c where E = electric field amplitude = 320 mV/m = 0.32 V/m, B = magnetic field amplitude and c = speed of light = 3 × 10⁸ m/s.

So, B = E/c

Substituting E and c into B, we have

B = E/c

= 0.32 V/m ÷ 3 × 10⁸ m/s

= 0.1067 × 10⁻⁸ T

= 1.067 × 10⁻⁹ T

= 1.067 nT

≅ 1.07 nT

You might be interested in
Alexis is studying how lenses work. She looks through a
Kryger [21]
It would be the 3rd one
6 0
2 years ago
Plastics are used in millions of objects we use every day. Why are plastics NOT considered natural resources?
jeka57 [31]

Answer:

B

Explanation:

Yes plastic is artficial

4 0
3 years ago
Read 2 more answers
During free fusion, the eyes _______ in order to view a stereogram without a stereoscope. A. use the pictorial depth cue B. are
Andru [333]

Answer:

D

Explanation:

During free fusion, the eyes converge or diverge in order to view a stereogram without a stereoscope.

7 0
2 years ago
The heat energy gained by the water in one minute is ?
kari74 [83]
<span>fast-moving particles colliding with slow-moving particles</span>
7 0
3 years ago
Magnesium hydroxide is used in? <br><br> soap<br><br> batteries<br><br> antacids<br><br> detergents
Inga [223]
The answer is antacids
3 0
2 years ago
Read 2 more answers
Other questions:
  • To make extra money during the summer, Mr. Garber, a 66.0-kg physics teacher, paints the outside of houses while sitting on a 5.
    12·1 answer
  • Decreasing the temperature of a reaction decreases the reaction rate because
    10·1 answer
  • As light from the sun travels to Earth much of the energy the light waves are carrying is lost before the wave reaches Earth.
    13·2 answers
  • Star formation begins when
    6·2 answers
  • Select the correct the answer.
    14·1 answer
  • What happens to the air resistance on a car as it speeds up? A) decreases b)stays the same C)it changes direction of the car D)i
    7·1 answer
  • Weight is the direct result of :<br><br> A. Distance <br><br> B. The amount of gravity being pulled
    12·1 answer
  • Select the correct answer. Two charged objects, A and B, exert an electric force on each other. What happens if the distance bet
    13·1 answer
  • HELP IM IN A EXAM!!!
    11·2 answers
  • Please answer me fast ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!