3 years ago

Which of the following is an element?

1 answer:

3 0

Oxygen is on the Periodic Table of Elements as a member of the chalcogen group. It is a chemical element represented by the symbol O.

B would've also been a right answer if it weren't for the Dioxide part.

But the answer is C. Oxygen.

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The term ________ commonly is used to refer to a string that is part of another string.

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Commonly is used to refer to a string that is part of another string.its a substring

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3 years ago

Light from a 560 nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 60°. What is the

MaRussiya [10]

Answer:

The angle of reflection is "60°".

Explanation:

The given values are:

Light from monochromatic source,

= 560 nm

Angle of incidence,

= 60°

Surface of fused quartz (n),

= 1.56

Whenever a light ray was indeed occurring at a flat surface, it should be the law or concept of reflection which contains this same rays of light, the reflected ray as well as the "normal" ray at either the mirror surface.

According to the above law,

⇒ $Angle \ of \ incidence=Angle \ of \ reflection$

then,

⇒ $Angle \ of \ reflection=60^{\circ}$

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3 years ago

If you increase the frequency, what happens to the velocity of the wave?

STALIN [3.7K]

Answer:

Wave frequency does not affect wave speed. An increase in wave frequency caused a decrease in wavelength while the wave speed remained constant. ... Rather, the speed of the wave is dependent upon the properties of the medium such as the tension of the rope.

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3 years ago

Pls help it’s due today

AveGali [126]

Explanation:

so I think it B hope that I helped you can good lick

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