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Ludmilka [50]
3 years ago
5

How do we know that white light is composed of a rainbow of colors?

Physics
1 answer:
olga55 [171]3 years ago
5 0

Answer:

When refracted or "bounced off" of an object, we see a variety of colors.

Explanation:

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Supposedly there is life on Mars but it’s early to say for sure
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3 years ago
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If both mass and speed are doubled, what happens to its momentum?
puteri [66]

The general formula is:      Momentum = (mass) x (speed)

I never like to just write a bunch of algebra without explaining it.
But in this particular case, there's really not much to say, and
I think the algebra will pretty well explain itself.  I hope so:


Original momentum = (original mass) x (original speed)


New momentum = (2 x original mass) x (2 x original speed)

                           = (2) x (original mass) x (2) x (original speed)

                           = (2) x (2) x (original mass) x (original speed)

                           =  (4) x (original mass) x (original speed)

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7 0
3 years ago
During a single-replacement reaction, a more-active metal will replace a less-active metal in a compound. Which single-replaceme
son4ous [18]

Answer:

Mg will replace Ag in a compound

Explanation:

A single replacement reaction is driven by the position of ions on the activity series.

As a rule of thumb, the position of metal ions on the activity series determines their reactivity.

Metal ions that are above another are more reactive and they will displace those that are lower.

Generally, activity increases as we go up the group.

Mg ions are higher than Ag ions on the series so, Mg will displace Ag from a solution.

8 0
3 years ago
The process of deposition causes The process of deposition causes
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A land form or land mass to be created over a long period of time
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A box is sitting on a 2 m long board at one end. A worker picks up the board at the end with the box so it makes an angle with t
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Answer:

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When the box is on the ramp , component of its weight along the ramp

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=μ mg cosθ

For sliding

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.41 < .57

So the box will slide

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acceleration

= gsinθ - μ g cosθ

= 5.62 - .3 x 9.8 x cos35

= 5.62 - 2.4

= 3.22 m /s²

3 0
3 years ago
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