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3 years ago

How old are the hydrogen atoms in water?

Physics

2 answers:

topjm [15]3 years ago

8 0

Answer: 4.5 billion years

Explanation:

Some of the water molecules in your drinking glass were created more than 4.5 billion years ago, according to new research.

That makes them older than the Earth, older than the solar system — even older than the sun itself.

Margaret [11]3 years ago

8 0

4.5 billion years !! Hope this helps

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Which have the longest wavelengths--light waves, x-rays, or radio waves?

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Which eletromagnetic waves have the lowest frequency radio waves micro waves x rays or gamma rays

slavikrds [6]

Answer: Radio waves have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

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3 years ago

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frez [133]

The work done by a constant force along a rectilinear motion when the force and the displacement vector are not colinear is given by:

$W=F\cos\theta\cdot d$

where F is the magnitude of the force, theta is the angle between them and d is the distance.

The problen gives the following data:

The magnitude of the force 750 N.

The angle between the force and the displacement which is 25°

The distance, 26 m.

Plugging this in the formula we have:

$\begin{gathered} W=\left(750\right)\left(\cos25\right)\left(26\right) \\ W=17673 \end{gathered}$

Therefore the work done is 17673 J.

The power is given by:

$P=\frac{W}{t}$

the problem states that the time it takes is 6 s. Then:

$\begin{gathered} P=\frac{17673}{6} \\ P=2945.5 \end{gathered}$

Therefore the power is 2945.5 W

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1 year ago

Why football players boots have spikes their sole<br>Give short and sweet answer

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it helps with balance and speed.

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3 years ago

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