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3 years ago

The one which gives direction of motion is *

Physics

1 answer:

alexgriva [62]3 years ago

4 0

I believe the correct answer would be change in velocity.

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What is the speed of gravity

mojhsa [17]

9.8m per seccond is the speed of gravity if you drop something like a ball from a tower

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4 years ago

A hydrogen atom in a galaxy moving with a speed of 6.65×106 m/???? away from the Earth emits light with a wavelength of 5.13×10−

Mumz [18]

Answer:

The observed wavelength on Earth from that hydrogen atom is $5.24\times 10^{-7}\ m$ .

Explanation:

Given that,

The actual wavelength of the hydrogen atom, $\lambda_a=5.13\times 10^{-7}\ m$

A hydrogen atom in a galaxy moving with a speed of, $v=6.65\times 10^6\ m/s$

We need to find the observed wavelength on Earth from that hydrogen atom. The speed of galaxy is given by :

$v=c\times \dfrac{\lambda_o-\lambda_a}{\lambda_a}$

$\lambda_o$ is the observed wavelength

$\lambda_o=\dfrac{v\lambda_a}{c}+\lambda_a\\\\\lambda_o=\dfrac{6.65\times 10^6\times 5.13\times 10^{-7}}{3\times 10^8}+5.13\times 10^{-7}\\\\\lambda_o=5.24\times 10^{-7}\ m$

So, the observed wavelength on Earth from that hydrogen atom is $5.24\times 10^{-7}\ m$ . Hence, this is the required solution.

8 0

3 years ago

alexgriva [62]

Answer:

Get your answer for $1 from www.gotit-pro.com

Explanation:

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3 years ago

Does the boat hold more weight in the regular water or the salt mixture

zmey [24]

It holds more weight in the regular water.

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4 years ago

What is a molecule??

Doss [256]

Answer:

A molecule is something every mass has and is very small

Explanation:

8 0

3 years ago

Read 2 more answers