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wariber [46]
2 years ago
9

.

Physics
1 answer:
eimsori [14]2 years ago
7 0

Explanation:

d =  \frac{1}{2} a {t}^{2}  + vt \\ d = 75 \\ t = 5 \\ v = 0 \\  \\ 75 =  \frac{1}{2}  \times 25a + 0 \\ a = 6 \frac{m}{ {s}^{2} }  \\

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There is a simple relationship between the energy for a photon of light Ephoton in units of eV (electron volts) and its waveleng
Eva8 [605]

Answer:

\lambda=620\ nm

E_p=1.9682\ eV

E_p=206.67\ eV is the photon energy of an x-ray

Explanation:

Given:

Energy of photon, E_p=2\ eV

Then according to given:

E_p=\frac{1240}{\lambda}

2=\frac{1240}{\lambda}

\lambda=620\ nm is the wavelength

Again,

Energy of photon, E_p=?

wavelength of the light, \lambda=630\ nm

E_p=\frac{1240}{630}

E_p=1.9682\ eV

<u>Now, photon energy for an x-ray:</u>

wavelength, \lambda=6\ nm

E_p=\frac{1240}{6}

E_p=206.67\ eV is the photon energy of an x-ray

3 0
3 years ago
An airplane flew from San Francisco to Washington, D.C. Approximately
Arada [10]

Answer:

The solution is given below:

Explanation:

The computation of the speed is shown below

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where

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= 800 km/h

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but the time is 2 hours

So, the speed is

= 2,000 km ÷ 2 hours

= 1,000 km/hr

The direction should be opposite to the first airplane

5 0
2 years ago
Scientist A believes she has discovered a new procedure that is better than a procedure currently in use by physicians. She test
stepladder [879]

Answer:

B

Explanation:

3 0
2 years ago
Read 2 more answers
Which particles are located in the nucleus of the atom? (2 points)
pentagon [3]

Answer:

Neutrons and protons are located in the nucleus of the atom.

Explanation:

And electrons are in the electron cloud.

8 0
3 years ago
In which phase of mitosis are chromosome first seen as a result of chromatin coiling?
Kruka [31]
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7 0
3 years ago
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