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nignag [31]
3 years ago
10

Which of the following provides evidence that has helped earth scientists determine the age of the earth more precisely?

Physics
2 answers:
algol133 years ago
7 0
The correct answer for the given question above would be option C. RADIOACTIVE DATING. The one that provides evidence that has helped earth scientists determine the age of the earth more precisely is radioactive dating. Radioactive dating<span> is a method of </span>dating<span> rocks and minerals using </span>radioactive <span>isotopes. Hope this answer helps. </span>
strojnjashka [21]3 years ago
6 0

By definition, we have to:

Radioactive dating is a technique used by scientists to determine the absolute age of different rocks, different minerals and organic remains.

This method has been carried out since 1905.

This method was developed by Ernest Rutherford as a method by which to determine the age of the Earth.

The method consists in studying the sample time by means of the relationship between the number of children isotopes with respect to the number of parent isotopes.

Answer:

the following provides evidence that you have helped earth scientists determine the age of the earth more precisely:

C. Radioactive dating

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1)If I'm on an elevator that breaks loose and plummets down the shaft, can I avoid harm by jumping at the last second?
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Answer and Explanation:

1) If you were to jump at the last second, you would decrease the impact velocity by 7 mph. This is because most humans have a maximum jump velocity of 7 mph. You may still get hurt, but the damage would be significantly less than if you were to not jump.

2) Bathroom mats are made of fabrics, and fabrics absorb the moisture in the air. If you were to take a shower at any temperature, the fabric will soak up the moisture in the air, so when you touch it, it doesn't feel cold.

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5 0
3 years ago
An object 16.8 cm tall is placed in front of a converging lens. A real image, 46 cm tall, is formed on the other side of the len
worty [1.4K]

Answer:

2.74

Explanation:

Magnification = image distance/object distance

Mag = v/u

Given

v = 46cm

u = 16.8

Magnification = 46/16.8

Magnification = 2.74

Hence the magnification is 2.74

7 0
3 years ago
How do you know an object is in motion?
puteri [66]
C
because an object need to be in motion to make any kind of movement
4 0
3 years ago
Three children are struggling and pulling on a single toy. Two of the children, Abe and Barry, are EACH (individually) pulling w
3241004551 [841]

Solution :

c). $\vec{F}_A = $ force applied by Abe

   $\vec{F}_B = $ force applied by Barry

   $\vec{F}_E = $ force applied by Eric

   $\vec{F}_R = $ Resultant force

$\vec{F}_A $  in the vector form can be written as :

         $\vec{F}_A = 0 \hat{i} + 60 \hat{j}$

$\vec{F}_B $  in the vector form can be written as :

         $\vec{F}_B = 60 \hat{i} + 0 \hat{j}$

The resultant,

$\vec{F}_R= \vec{F}_A+\vec{F}_B $

     $=(0 \hat i + 60 \hat j)+(60 \hat i + 0\hat j)$

    $=60 \hat i + 60 \hat j$

$|\vec{F}_R| = \sqrt{60^2+60^2}$

        = 84.853 N

d). As the three forces are in equilibrium, therefore,

$|\vec F_E| = |\vec F_R|$

$|\vec F_E| =84.853 \ N$

e). The direction of the force exerted by Eric is exactly opposite to the direction of the resultant force.

The direction of the resultant force is :

$\theta = \tan ^{-1}\left(\frac{F_y}{F_x}\right)$

   $ = \tan ^{-1}\left(\frac{60}{60}\right)$

  = 45°  north east

The direction of the force E is  45° west or  45° south west.

   

8 0
3 years ago
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