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
Nina [5.8K]
2 years ago
5

What is the source of Earth’s magnetic field?

Physics
2 answers:
zhuklara [117]2 years ago
6 0

Answer and Explanation:

The main source of earth magnetic field is the metals and iron present in earth crust these metals are mainly found in liquid state in earth crust and we know that whenever there is spinning of these liquid metals then there will magnetic field generate, So the main source of earth magnetic field is the metals present in earth crust.

cluponka [151]2 years ago
5 0

Answer:

Explained

Explanation:

The core of the Earth is composed of molten metals mostly iron and nickel.  These molten metals are in continuous motion. Thus, generating a very strong current convectional current. This in turn produces magnetic field around Earth. These convectional currents are caused due to heat escaping the earth's core. This magnetic field acts as a barrier against solar wind trying enter the earth's atmosphere.

You might be interested in
Need help on this please
marin [14]
The answer is D, the amount of energy stays the same.
3 0
3 years ago
Two identical loudspeakers are some distance apart. A person stands 5.80 m from one speaker and 3.90 m from the other. What is t
NikAS [45]

Answer:

f = 632 Hz

Explanation:

As we know that for destructive interference the path difference from two loud speakers must be equal to the odd multiple of half of the wavelength

here we know that

\Delta x = (2n + 1)\frac{\lambda}{2}

given that path difference from two loud speakers is given as

\Delta x = 5.80 m - 3.90 m

\Delta x = 1.90 m

now we know that it will have fourth lowest frequency at which destructive interference will occurs

so here we have

\Delta x = 1.90 = \frac{7\lambda}{2}

\lambda = \frac{2 \times 1.90}{7}

\lambda = 0.54 m

now for frequency we know that

f = \frac{v}{\lambda}

f = \frac{343}{0.54} = 632 Hz

7 0
3 years ago
1.20 Newton force is working on a 250 gram object. What is the acceleration?
Leokris [45]

Answer:

The answer is B

Explanation:

250g = 0.25kg

F = m × a

a = F/m

= 1.2/0.25

= 4.8m/s²

7 0
2 years ago
If a student flicks a stationary 0.1 kg ball with 5N of force for 0.1 seconds. What is its final
Alisiya [41]

5m/s

Explanation:

Given parameters:

Mass of ball = 0.1kg

Force on the ball = 5N

time taken = 0.1s

Unknown:

final speed of the ball = ?

Solution:

According to newton's second law "the net force on a body is the product of its mass and acceleration".

  Force = mass x acceleration      equation 1

Acceleration =

  V is the final velocity

  U is the initial velocity

  T is the time taken

 U = O since it is a stationary body;

      a = \frac{V}{T}

Input "a" into equation 1

  F = m x \frac{V}{T}

 5 = 0.1 x \frac{V}{0.1}

 V = 5m/s

learn more:

Newton's laws brainly.com/question/11411375

#learnwithBrainly

3 0
3 years ago
1. What force is needed to accelerate the stone of
Leokris [45]

Answer:

i think its a

Explanation:

and next is 4

6 0
2 years ago
Other questions:
  • Which is a better conductor, a flagpole or a flag? Why?
    9·2 answers
  • Which item is an example of a primary source? A. An academic paper analyzing John F. Kennedy's presidency B. A transcript of a p
    11·1 answer
  • Why will a change in velocity have a greater affect on KE than a change in mass?
    9·2 answers
  • An object is falling from a height of 7.5 meters. At what height will its velocity be 7 meters/second?
    5·1 answer
  • What is the velocity of all electromagnetic waves in a vacuum?
    14·1 answer
  • What are electric motors?
    14·1 answer
  • Technician A says some compressor service procedures can be performed on the vehicle if space permits. Technician B says modern
    5·1 answer
  • Mention five disadvantages of nonsustainable energy <br><br>​
    5·1 answer
  • Which of the following describes the motion or change caused by a transformation from electrical to sound energy? (2 points) a A
    7·2 answers
  • Evaluate the expression a+b when a=23 and b=45 . Write in simplest form
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!