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algol13
3 years ago
13

Which of the following does NOT support the geologic evidence used to date the earth?

Physics
1 answer:
Zanzabum3 years ago
4 0

Answer:

comparing the anatomy of organisms

Explanation:

Basically, Rocks are the solid evidence used to date the earth.

Due to the changing in the genetic make up of organisms,the anatomy of organisms is not a reliable evidence to date the earth.

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Science whoever gets this will get a brainlest
Zanzabum

Answer:

I got it right xd

Explanation:

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6 0
3 years ago
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What assumption can be made about the densities of two different spheres that have
Triss [41]

Answer:

Their densities are different as well

Explanation:

Density is worked out by dividing mass by volume. If the mass was the same then the densities would be as well. But it's not.

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8 0
3 years ago
You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 252 N in the negative x di
pentagon [3]

(a) 252 N, opposite to the applied force

There are two forces acting on the refrigerator in the horizontal direction:

- the pushing force of 252 N, F, forward

- the frictional force, Ff, pulling backward

In this case, the refrigerator is not moving: this means that its acceleration is zero. According to Newton's second law, this also means that the net force acting on the refrigerator is also zero:

\sum F = ma = 0

So we have

F-F_f = 0

which means that the frictional force is equal in magnitude to the pushing force:

F_f = F = 252 N

and the direction is opposite to the pushing force.

(b) 334.8 N

The force that must be applied to the refrigerator to make it moving is equal to the maximum force of friction, which is given by:

F_{max} = \mu mg

where

\mu = 0.61 is the coefficient of static friction

m = 56 kg is the mass of the refrigerator

g = 9.8 m/s^2 is the acceleration of gravity

Substituting:

F_max = (0.61)(56 kg)(9.8 m/s^2)=334.8 N

6 0
3 years ago
The frequency of which type of eletromagtic wave i just higher than that of visible light
Gwar [14]

Hello, Your hero is here and that's The Human Spider!


Answer: Electromagnetic waves with wavelengths just shorter than those of visible light; Ultraviolet rays carry out more energy than visible light because it has a higher frequency. Electromagnetic Waves with wavelengths just shorter than those of ultraviolet rays; X-Rays can penetrate through most matter.



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7 0
3 years ago
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Calculate the cenrtripetal acceleration of the Earth in
miv72 [106K]

Answer:

0.00594\ m/s^2\ \text{towards the Sun}

3.54737\times 10^{22}\ N

Explanation:

r = Distance between Earth and Sun = 1.5\times 10^{11}\ m

Time taken to complete one rotation around Sun is given by

T=365.25\times 24\times 3600

Centripetal acceleration is given by

a=\dfrac{v^2}{r}\\\Rightarrow \\\Rightarrow a=\dfrac{(\dfrac{2\pi r}{T})^2}{r}\\\Rightarrow a=\dfrac{4\pi^2r}{T^2}\\\Rightarrow a=\dfrac{4\pi^2\times 1.5\times 10^{11}}{(365.25\times 24\times 3600)^2}\\\Rightarrow a=0.00594\ m/s^2\ \text{towards the Sun}

The centripetal acceleration of the Earth in its orbit is 0.00594\ m/s^2\ \text{towards the Sun}

Force is given by

F=ma\\\Rightarrow F=5.972\times 10^{24}\times 0.00594\\\Rightarrow F=3.54737\times 10^{22}\ N

The force on the Earth is 3.54737\times 10^{22}\ N

4 0
3 years ago
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