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2 years ago

Light waves can interact with matter by being transmitted, absorbed, or ____؟

Physics

2 answers:

rosijanka [135]2 years ago

5 0

Answer:

Reflection

Explanation:

The answer must be 20

Andre45 [30]2 years ago

4 0

Answer:

reflected

Explanation:

Light waves can interact with matter by being transmitted, absorbed, or reflected . 

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Striking a match stick on the matchbox involves the reaction of potassium chlorate and red phosphorus with the following equatio

yarga [219]

Answer:

m(P4) = 46.175 (grams)

m (KClO3) = 149 (grams)

Explanation:

1) n(P4) = n(P4O10);

m(P4)/M(P4) = m(P4O10)/M(P4O10);

m(P4) = M(P4)*m(P4O10)/M(P4O10)
= 123.90*105.8/283.89
= 46.175 (grams)

2) Analogously, 10n(P4O10) = 3n(KClO3)

m (KClO3) = 10M(KClO3)*m(P4O10)/3M(P4O10)
= 10*122.55*105.8/283.89/3
= 149 (grams).

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2 years ago

What symbol would best represent an electric fan in an electric circuit?

ladessa [460]

For this case we have, by definition, that:

Resistance is a component that is responsible for limiting the amount of current that can pass through a circuit, converting excess heat.

Consume energy.

Option A represents a swicth, option B represents a luminaire and option D represents a voltage source.

So, the correct option is C,

Answer:

Option C

3 0

3 years ago

Read 2 more answers

How long must a simple pendulum be if it is to make exactly one swing per four seconds? (That is, one complete oscillation takes

cricket20 [7]

Answer:

Length of the pendulum will be 3.987 m

Explanation:

We have given time period of the pendulum T = 8 sec

Acceleration due to gravity $g=9.81m/sec^2$

We have to find the length of the simple pendulum

We know that time period of the simple pendulum is given by

$T=2\pi \sqrt{\frac{l}{g}}$

$8=2\times 3.14 \sqrt{\frac{l}{9.81}}$

$l=3.987m$

So length of the pendulum will be 3.987 m

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3 years ago

You have 9 stones that are identical in appearance. One of these stones weighs just a bit more than the other 8. These other 8 s

Lynna [10]

I think you can weigh it 3 and 3.
If they balance, choose set not used.

If not balanced, take the heavier side

then weigh 1 and 1
if balanced, stone not used, if not balanced, take the heavier side

hope this helps

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3 years ago

Despite their extensive applications in communication systems, radio waves a not the only form of EM waves present in our atmosp

tiny-mole [99]

Let us assume that the definition of frequency, wavelength and wave speed is determined by the function

$f = \frac{v}{\lambda}$

Here,

v = Velocity of wave

$\lambda$ = Wavelength

f = Frequency

We know that the earth has the ability to absorb visible light but that it can also emit a longer radiation wavelength. This assessment allows us to confirm that option A. Is correct. In turn, if said wavelength is large, being inversely proportional to the frequency,

$\lambda \propto \frac{1}{f}$

This does tend to be lower radiation. The correct options are:

A.The earth absorbs visible light and emits radiation with a longer wavelength.

B.The earth absorbs visible light and emits radiation with a lower frequency.

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4 years ago