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2 years ago

Describe how tree rings indicate time. Do the same for ice cores and varves?

Physics

1 answer:

tatyana61 [14]2 years ago

7 0

Answer:

counting tree rings can indicate age

Explanation:

hope i helped at least a little bit :)

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To use Faraday's law for this problem, you will need to construct a suitable loop, around which you will integrate the electric

VikaD [51]

Answer:

a. xy

Explanation:

The Faraday's law of induction can be used to express the relationship between the electric field line integral and the magnetic flux rate change in a closed loop. In order to ensure that the relationship between the two variables is equivalent to zero, the integration should be conducted on the xy plane. The correct option is option a.

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3 years ago

Can someone help me and put them in order, I numbered them down so it can be easier to say.

Alexxx [7]

Answer:

the answer to this question is 2,4,3,1

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2 years ago

A projectile is fired vertically from Earth's surface with

scoray [572]

Answer:

$h=25.52\times10^6 m$

Explanation:

Initial speed, v = 10 x 10^3 m/s

Mass of the earth, M = 6 x 10^24 kg

Radius of the earth, R = 6.4 x 10^6 m

Maximum from the surface of earth, h = ?

Let m = Mass of the projectile

Solution:

Potential energy at maximum height = ( Potential + Kinetic energy ) at the surface

$-G M m / ( R + h )=- G M m / R + (1/2) m v^2$

$- G M / ( R + h ) = - G M / R + (1/2) v^2$

$-2\times G M / ( R + h ) = ( - 2 G M / R ) + v^2$

$-2\times6.67\times10^{-11}\times6\times10^{24}/ ( R + h )$

= $( (- 2\times 6.67\times10^{-11}\times6\times10^{24}) /(6.4\times10^6)} +10000^2$

= $-2.50625\times10^7 J$

$=- 8\times10^{14} / ( R + h )=-2.50625\times 10^7$

$R+h=31.92\times10^{6}$

$h=31.92\times10^{6}-6.4\times10^6$

$h=25.52\times10^6 m$

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2 years ago

An incident on route 12 summary?I need to describe what happens in the book in a short summary can anyone help?

Serga [27]

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Explanation: I HOPE THAT HELPED

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2 years ago

Hi..Please answer questions???

Nadya [2.5K]

Answer:

Explanation:

Becuse its complete number

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2 years ago