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Bad White [126]
3 years ago
12

Light with a frequency of 7.18 Ã 1014 hz lies in the violet region of the visible spectrum. what is the wavelength of this frequ

ency of light? answer in units of nm.
Physics
1 answer:
andre [41]3 years ago
6 0
The frequency is 7.18 × 10^14 Hz, c= 3 × 10^8 m/s, where c is the speed of light.
But; c = λf, where λ is the wavelength of the wave and f is the frequency.
Making λ the subject, we get;
λ = c/f
  = (3 ×10^8)/ (7.18 ×10^14)
  = 4.17827 × 10^-7 m
but 1 m = 10^9 nm
Therefore;
 = (4.17827 ×10^-7) × 10^9
 = 417.827 nm
Hence, the wavelength= 417.827 nm
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liq [111]

Answer:

Empathy

Explanation:

Empathy: to understand the thoughts, feelings, or emotional state of another person

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Cooperation: is the association for mutual benefit

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8 0
3 years ago
If a ball is rolling across a floor at a constant speed is it accelerating
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If it's rolling in a straight line, then there's no acceleration.

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Differences between concave and convex meniscus​
BARSIC [14]

Explanation:

A concave meniscus,(normally seen) occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.

4 0
3 years ago
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The Skeleton does a surprising number of things. What are the three main Ones? lol, it's due today at 12:59 pm I need help.
ICE Princess25 [194]

Answer:

Support

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5 0
3 years ago
Find the net charge of a system consisting of 6.25×10^6 electrons and 7.75×10^6 protons. Express your answer using three signifi
jok3333 [9.3K]

Answer:

2.40 x 10⁻¹³ C

Explanation:

n_{e} = number of electrons = 6.25 x 10⁶

q_{e} = charge on electron = - 1.6 x 10⁻¹⁹ C

n_{p} = number of protons = 7.75 x 10⁶

q_{p} = charge on proton =  1.6 x 10⁻¹⁹ C

Net charge is given as

Q = n_{e} q_{e} + n_{p} q_{p}

Q = (- 1.6 x 10⁻¹⁹) (6.25 x 10⁶) + (1.6 x 10⁻¹⁹) (7.75 x 10⁶)

Q = 2.40 x 10⁻¹³ C

6 0
3 years ago
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