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Veronika [31]
3 years ago
13

The section of the electromagnetic spectrum that humans can generally see is called _____ light.

Physics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

(A) Visible

Explanation:

  • The section of the electromagnetic spectrum that humans can generally see is called visible light.

White light is visible light and the range of visible wavelengths ranges from 400 - 700 nanometers.

frez [133]3 years ago
3 0

The word "visible" is an adjective, meaning "able to be seen with eyes".

It was reasonable, then, that some of the most brilliant minds in all of science got together, and agreed to refer to the range of electromagnetic wavelengths able to be seen with eyes as "<u><em>visible</em></u>" light.  <em>(A)</em>

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3 years ago
If light moves at a speed of 299,792,458 m/s, how long will it take light to move a distance of 1,000 km
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kirza4 [7]

At t =0, the velocity of A is greater than the velocity of B.

We are told in the question that the spacecrafts fly parallel to each other and that for the both  spacecrafts, the velocities are described as follows;

A: vA (t) = ť^2 – 5t + 20

B: vB (t) = t^2+ 3t + 10

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Learn more: brainly.com/question/24857760

Read each question carefully. Show all your work for each part of the question. The parts within the question may not have equal weight. Spacecrafts A and B are flying parallel to each other through space and are next to each other at time t= 0. For the interval 0 <t< 6 s, spacecraft A's velocity v A and spacecraft B's velocity vB as functions of t are given by the equations va (t) = ť^2 – 5t + 20 and VB (t) = t^2+ 3t + 10, respectively, where both velocities are in units of meters per second. At t = 6 s, the spacecrafts both turn off their engines and travel at a constant speed. (a) At t = 0, is the speed of spacecraft A greater than, less than, or equal to the speed of spacecraft B?

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