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Mandarinka [93]
3 years ago
14

One orbit of the earth around the sun equals _____________ miles.

Chemistry
2 answers:
Elena-2011 [213]3 years ago
5 0

Answer:

should be 595 !

Explanation:

garri49 [273]3 years ago
4 0

Answer:

it's about 580millon, but the closest you have is 595 million, so pick that one

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The speed of sound in water is 350m/s. If a sound wave has the frequency of 50Hz.
Elena-2011 [213]

Answer:

Explanation

Let, Wavelength = W,

Given, frequency (f) = 50 Hz, wave velocity (V) = 342 m/s

We know, V = f × W

=> 342 = 50 × W

=> W = 342/50 metre

=> W = 6.84 metre

3 0
3 years ago
What is the momentum of a photon that has a wavelength of 3.00 102 nm? remember the wavelength of a photon is equal to planck's
marta [7]
De Broglie's equation is used to show that photons have both particle and wave nature. photons are quantized packets of energy. the wave nature of photons can be proven as they have a wavelength. the particle nature is given by them having both velocity and mass. 
de Broglies equation is;
λ = h / p 
where λ - wavelength 
h - Planck's constant 
p - momentum 
substituting the values in the equation 
p = h/λ
p = \frac{6.626 * 10^{-34}m^{2} kg/s }{3.00 *  10^{-7}  m}
p  = 2.20 x 10⁻²⁷ kgm/s
momentum of photon is 2.20 x 10⁻²⁷ kgm/s
5 0
3 years ago
What is an example
Paha777 [63]

Answer:

NaF sodium flouride

Explanation:

7 0
3 years ago
Z=3 1s2 express answer as an ion
sashaice [31]

Answer:

The element with electronic configuartion  1s² and atomic number 3 must be an cation.

Explanation:

The "Z" shows the atomic number. Z stand for zahl. It Is German word and meaning is " number".

In given question Z is equal to three which means an element with atomic number three.

Let consider the X is an element with atomic number three having electronic configuration 1s², but according to this atomic number there should be one more electron present is 2s. If X has the electronic configuration 1s² it means that it lose one electron and X is present in the form of cation.

X⁺ =  1s²

7 0
3 years ago
Which is an example of ionization?
Reptile [31]
Ionization is a formation of ions from neutral atoms or molecules.

SO₂ + H₂O = HSO₃⁻ + H⁺

Mg(OH)₂ = Mg²⁺ + 2OH⁻
3 0
3 years ago
Read 2 more answers
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