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ehidna [41]
3 years ago
5

In 1986, several robotic spacecrafts were sent into space to study the Halley's Comet. Which of these statements best explains w

hy humans should continue to send robotic spacecrafts into space?
A. They absorb harmful radiations in space.
B. They help change weather conditions on Earth.
C. They help discard some myths about objects in space.
D. They destroy meteors and comets which might strike Earth.
Physics
1 answer:
maks197457 [2]3 years ago
4 0
No spacecraft has been built yet that was able to absorb harmful
radiations in space, change weather conditions on Earth, or destroy
meteors and comets which might strike Earth.

We should continue to send robotic spacecrafts into space
because they help discard some myths about objects in space. 
In other words, they help us learn things that we never knew before.

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The final light will be white. In fact, each color of the visible spectrum is an electromagnetic wave with its own specific frequency and wavelength. White, instead, does not have a specific frequency: it is the sum of all the different wavelengths of the visible spectrum. Therefore, when recombining the spectrum of the refracted light all the different frequencies recombine together, and their sum gives white light.

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You can tell a lot about an object that's not moving,
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==> If the box is at rest on the table, then it is not accelerating.

==> Since it is not accelerating, I can say that the forces on it are balanced.

==> That means that the sum of all forces acting on the box is zero,
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All of the forces on this list must add up to zero. So ...

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Vertical forces:
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