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
Lynna [10]
2 years ago
11

How long have scientists been recording the strength of the Earth's magnetic field?

Physics
2 answers:
rosijanka [135]2 years ago
7 0
Since 1840 we have been accurately enough to tell how the magnetic feild works, every 300,000 years it flips that hasn't occurred for 800,000 years though, hope this helps.<span />
jenyasd209 [6]2 years ago
7 0

Explanation:

The strength of the magnetic field was first measured in 1835 by Carl Friedrich Gauss and has been measured numerous times since then, showing a relative decay of 10% in the last 150 years. Currently, satellites use magnetometers to probe the three-dimensional structure of the Earth's magnetic field.

You might be interested in
Which of the following is the most important difference between a permanent magnet and a electromagnet
Ira Lisetskai [31]

Answer:

Explanation: the major difference between an electromagnet and permanent magnet is that the former can have a magnetic field when electric current flows through it and disappears when the flow of the current stops. ... It will always displays the magnetic behaviour.

5 0
3 years ago
What is the difference in electrical potential energy between two places in an electric field?
Ierofanga [76]
The question is poorly worded, and makes it harder for the student to learn the basics of the subject. "Potential Difference" is the difference in electrical potential between two places in an electric field ... not in electrical potential energy.
4 0
3 years ago
Which has the greater acceleration, a person going from 0 m/s to 10 m/s in 10 seconds or an ant going from 0 m/s to 0.25 m/s in
monitta

<u>P</u><u>e</u><u>r</u><u>s</u><u>o</u><u>n</u><u>-</u><u>1</u>

  • Initial velocity=u=0m/s
  • Final velocity=v=10m/s
  • Time=10s=t

\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}

\\ \sf\longmapsto Acceleration=\dfrac{10-0}{10}

\\ \sf\longmapsto Acceleration=\dfrac{10}{10}

\\ \sf\longmapsto Acceleration=1m/s^2

<u>P</u><u>e</u><u>r</u><u>s</u><u>o</u><u>n</u><u>-</u><u>2</u>

  • initial velocity=0m/s=u
  • Final velocity=v=0.25m/s
  • Time=t=2s

\\ \sf\longmapsto Acceleration=\dfrac{0.25-0}{2}

\\ \sf\longmapsto Acceleration=\dfrac{0.25}{2}

\\ \sf\longmapsto Acceleration=0.125m/s^2

Person-1 is accelerating faster.

4 0
3 years ago
Select the correct answer.<br> Which hand is negatively charged?
ozzi

Answer:

b

Explanation:

6 0
3 years ago
What is the tensile strength of hair ?
Olegator [25]
Human hair

Yield strength (MPa)
140-160

Ultimate tensile strength (MPa)
200-250

Hope that helps.
6 0
2 years ago
Read 2 more answers
Other questions:
  • For a circuit shown in the figure, all quantities are accurate in 3 significant figures. What is the power dissipated in 2-ohm r
    12·1 answer
  • A heavy flywheel rotating on its central axis is slowing down because of friction in its bearings. At the end of the first minut
    15·1 answer
  • 25 POINTS and brainiest answer for General Science help!
    9·2 answers
  • The voltage across a membrane forming a cell wall is 72.7 mV and the membrane is 9.22 nm thick. What is the magnitude of the ele
    5·1 answer
  • How does changing the number of neutrons affect an atom?
    8·1 answer
  • When a pendulum with a period of 2.00000 s is moved to a new location from one where the acceleration due to gravity was 9.80 m/
    5·1 answer
  • It took an American football lineman 14 seconds to complete 10 repetitions of a 102 kg bench press. If the bar had to travel 1.4
    12·1 answer
  • If a sphere with radius r is inscribed in a cube with edges of length e, which of the following expresses the relationship betwe
    6·1 answer
  • A mass m on a spring with a spring constant k is in simple harmonic motion with a period T. If the same mass is hung from a spri
    5·1 answer
  • Mario rolls a coin up a slope at 3 m/s North. It travels 8.3 m, comes to a stop and rolls back down.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!