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
allsm [11]
3 years ago
5

which observation about the Mid-Atlantic Ridge region provides the best evidence of the seafloor has been spreading over for mil

lions of years ​
Physics
1 answer:
Kitty [74]3 years ago
8 0

Magnetic stripes on the sea floor

Explanation:

The observation of magnetic stripes patterns at the region of the Mid-Atlantic Ridge galvanized the evidence that sea floor spreading has been on for several millions of years.

  • Geomagnetic field of the earth is similar to that of bar magnet having the north and south pole.
  • It originates from the movement of iron-nickel within the outer core.
  • This geomagnetic field causes the magnetization of magnetic minerals in rock.
  • When freshly formed magma is brought to the surface at the mid oceanic ridge area, the prevailing magnetic field causes the magnetic minerals in the magma to cool in such a way that they align their domains to that of the field.
  • The magnetic field of the earth can reverse and take different geometry. Sometimes, its intensity is very strong and at other times it is weak.
  • The magnetic minerals in melts bear these records.
  • As new materials are brought up, they get magnetized.

Learn more:

Sea floor spreading brainly.com/question/9912731

#learnwithBrainly

You might be interested in
At a busy intersection, a 1320-kg car traveling west with a speed of 12 m/s collides head-on with a minivan traveling east with
Elza [17]
p = mv so this question pertains to conservation of momentum.

The momentum of the car is 1320*12 = 15840kgms^-1
For the sake of easiness and the fact negatives are annoying, I will assume east to be positive.

So we know 9.4m - 15840 = (1320+m)*1.5
9.4m - 15840 = 1980+1.5m

Rearranging to solve for m
7.9m = 17820
m = 2255.70 = 2300kg to 2sf

7 0
4 years ago
When tightening a bolt, you push perpendicularly on a wrench with a force of 167 N at a distance of 0.1450 mm from the centre of
Vlad1618 [11]

Answer:0.0242 Nm

Explanation: The distance of 0.145 mm is very small. This will also result in a small ttorque. The question would make more sense if the distance was 0.145 m. Answering with the 0.145 mm as distance :

Changin from mm to m : 1mm=0.001m

0.145 mm = 0.000145 m

The formula for Torque is T=Fxd

Wher F is the force and d is the perpendicular distance between the centre of the bolt and the applied force.

T= 167 x 0.000145 = 0.024215 Nm

5 0
3 years ago
We know that an electric field contains energy. What causes the electric field itself?
Art [367]

Electrical charges on one or more particles within the field cause the electric field

Each point in space has an electric field associated with it when a charge of any kind is present. The value of E, often known as the electric field strength, electric field intensity, or just the electric field, expresses the strength and direction of the electric field

A region of space surrounding an electrically charged particle or object known as an electric field is one in which an electric charge would experience force. A vector quantity called an electric field can be represented by arrows pointing in the direction of or away from charges. The force per unit charge exerted on a positive test charge that is at rest at a given position is the force per unit charge that is used to define the electric field analytically.

To learn more about electric field please visit - brainly.com/question/15800304
#SPJ1

5 0
2 years ago
Gold has a density of 19.32 g/cm3. what is the volume of a sample of gold with a mass of 27.63 grams?
schepotkina [342]
Answer:  The volume is:  " 1.430 cm³ " .
_____________________________
Explanation:  
________________________
Volume, " V  = ? ; (unknown, we need to solve for this).
Density,  "D  = 19.32 g / cm³ ; 
mass , "m" = 27.63 g ; 
_____________________________________________
The formula for density is:  
____________________________________________
  D = m / V ;   Divide each side of the equation by:  "(1/m)" ;
                    to isolate " V" on one side of the equation; and to solve for "V" ; 
____________________________________________
1/m)*D = (1/m) * (m / V) ;
_______________________________
    to get:   
_______________________________
       D/m = ; ↔  1 / V ;  Take the reciprocal of EACH SIDE; to isolate "V" on each side of the equation:    
_____________________________
      m / D = V/1 ↔ V = m / D ;
_____________________________
    V = m / D ; 
_______________________________
         Now, plug in our given values for mass, "m" ; and Density, D";              to solve for "Volume, V " ;
_____________________________________
    V  =  m / D  =  (27.63 g)  ÷  (<span>19.32 g / cm</span>³)  ;                
 
                       =  (27.63 g) * (1 cm³ / 19.32 g) ;
 
                       =   (27.63 ÷ 19.32)  cm³  ;
  
                       =   1.4301242236024845 cm³ ;

                                              → Round to "4 significant figures" ; 
                       =   1.430 cm³ .
____________________________________________
   The volume is:  " 1.430 cm³ " .
______________________________________________
4 0
3 years ago
A member of the Penn State Women's Basketball team performs a jumping movement simulating that used in a jump shot. The time fro
Shkiper50 [21]

A) Starting from rest, we have the entire cycle determined by 0.8s.

If we assume a constant movement, half of that time is when it reaches the highest point, that is, in 0.4s.

The distance as a function of speed and acceleration is given by,

d=v_it+\frac{1}{2}at^2

At the initial point the speed is zero and the acceleration is equivalent to gravity.

d= 0+ \frac{1}{2}9.8*0.4^2

d=0.784m

B) When returning to the ground, the final speed is zero. Therefore, the equation that relates velocity to acceleration is given by,

V_f = V_i+at

0 = V_i -9.8(0.4)

V_i = 3.92m/s

5 0
4 years ago
Other questions:
  • A simple harmonic wave of wavelength 18.7 cm and amplitude 2.34 cm is propagating along a string in the negative x-direction at
    7·1 answer
  • The coefficient of volume expansion of a certain olive oil is 0.68 × 10-3 K-1. A 1.0-L glass beaker is filled to the brim with o
    9·1 answer
  • Magnification for the eyepiece lens on your microscope
    13·1 answer
  • In the car experiment you completed what part of the scientific method would the following statement be classified as?
    7·1 answer
  • An object is acted upon by the forces F1equalsleft angle12​,7​,2right angle and F2equalsleft angle0​,4​,8right angle. Find the f
    10·1 answer
  • Threshold potential refers to the membrane potential required to:
    14·2 answers
  • Which of the following controls the normal breathing system ​
    11·1 answer
  • An archer pulls back the string of a bow to release an arrow at a target. Which kind of potential energy is transformed to cause
    13·2 answers
  • Correlation alone_____ causation A.proves B.complicates C. Disproves D. does not prove
    11·1 answer
  • Help plz I’ll mark brainliest
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!