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08 May 2019
Why is it more difficult to move and need more power / fuel, the more the spacecraft weighs?
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05 Dec 2019
What are the expected properties of particles at the end of the universe?
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28 Jan 2022
Time Dilation - Relation - Black holes vs Big bang
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26 May 2021
What things have scientists achieved that do not exist or happen anywhere else in the universe?
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06 Nov 2020
vector
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10 Feb 2023
a light wave from a star has a frequency of 6.6700000000000000 and a wavelength of 4.500000000 the star is 4.000000000000000000 m away from earth calculate the time it takes light from the star to reach the earth
by Ellie Sal
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20 May 2019
How does a photon carry and impart colour?
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02 Aug 2021
vectoral and scalar
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21 May 2019
How does light pass through glass but not a thin and less dense material like a thin sheet of cardboard.
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23 Jun 2022
Do you have to be a qualified practitioner or university graduate to create a study?
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