3 years ago

Earth's age is closest to _____ years

2 answers:

8 0

<span>Since the planet Earth doesn't have a birth certificate to record its formation, scientists have spent hundreds of years struggling to determine the age of the planet. By dating the rocks in the ever-changing crust, as well as neighbors such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.
Hope this helps</span>

maksim [4K]3 years ago

6 0

Answer:

The Correct answer is D

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Natasha_Volkova [10]

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marshall27 [118]

Answer:

Explanation:

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The gravitational self potential energy of a solid ball of mass density ρ and radius R is E. What is the gravitational self pote

Alenkasestr [34]

It will be
E = mgh.
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3 years ago

The average weather of a particular place is

aniked [119]

<span>The average weather of a particular place is "Climate"

In short, Your Answer would be Option B

Hope this helps!</span>

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3 years ago

Read 2 more answers

If a cell phone is dropped from a very tall building, how far has the phone fallen after 2.7 seconds, neglecting air resistance?

Zielflug [23.3K]

The free fall of the phone is an uniformly accelerated motion toward the ground, with constant acceleration equal to
$g=9.81 m/s^2$

So, assuming the downward direction as positive direction of the motion, since the phone starts from rest the distance covered by the phone after a time t is given by
$y(t) = \frac{1}{2}gt^2$
And if we substitute t=2.7 s, we find the distance covered:
$y(t)= \frac{1}{2}(9.81 m/s^2)(2.7 s)^2=35.8 m$

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2 years ago