Answer: (A) 1.5 m
Explanation:
This situation is due to Refraction, a phenomenon in which a wave (the light in this case) bends or changes its direction when passing through a medium with an index of refraction different from the other medium.
In this context, the index of refraction is a number that describes how fast light propagates through a medium or material.
In addition, we have the following equation that states a relationship between the apparent depth and the actual depth :
(1)
Where:
is the air's index of refraction
water's index of refraction.
is the actual depth of water
Now. when is smaller than the apparent depth is smaller than the actual depth. And, when is greater than the apparent depth is greater than the actual depth.
Let's prove it:
(2)
Finally we find the apparent depth of water, which is smaller than the actual depth:
Answer:
radio waves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
Explanation:
Electromagnetic waves are the waves which are created as the result of the electrical waves which are perpendicular to each other and also perpendicular to the direction of propagation.
Electromagnetic spectrum is range of the frequencies and their respective wavelengths of the various type of the electromagnetic radiation.
In order of the increasing frequency and the photon energy and the decreasing wavelength the spectrum are:
<u>radio waves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
</u>
Answer:here u go
Explanation:
Atoms vs. Ions. Atoms are neutral; they contain the same number of protons as electrons. By definition, an ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.
Explanation:
Elon Reeve Musk FRS (/ ˈiːlɒn /; nascido em 28 de junho de 1971) é engenheiro, designer industrial, empresário de tecnologia e filantropo. Ele é o fundador, CEO, CTO e designer-chefe da SpaceX; investidor inicial, [nota 1] CEO e arquiteto de produto da Tesla, Inc.; fundador da The Boring Company; co-fundador da Neuralink; e co-fundador e co-presidente inicial da OpenAI. Ele foi eleito membro da Royal Society (FRS) em 2018. Em 2018, ele foi classificado em 25º na lista da Forbes das pessoas mais poderosas do mundo, e foi classificado em primeiro lugar na lista da Forbes dos líderes mais inovadores de 2019. Em 29 de julho de 2020, seu patrimônio líquido foi estimado em US $ 68 bilhões e ele foi listado pela Forbes como a nona pessoa mais rica do mundo. Ele é o CEO com o mandato mais longo de qualquer fabricante automotivo globalmente.