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3 years ago

A) Menciona algunos ejemplos de situaciones, mitos, tradiciones o aspectos culturales que

Physics

1 answer:

romanna [79]3 years ago

5 0

Answer:

pues libros y enciclopedia

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What is part of a line has one endpoint and continues in one direction?

noname [10]

Answer:

A Ray I believe since it sounds like it.

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3 years ago

Is kirchoff's law applicable for ac circuits?

SIZIF [17.4K]

<span>Kirchhoff's laws apply to AC circuits to either two cases: instantaneousneous values of currents and voltages or to complex values of currents and voltages. However, this never applies to: rms values of currents and voltages. Kirchoff's law relates to the current, voltage and resistance to multiple nodes</span>

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4 years ago

The emission line used for zinc determinations in atomic emission spectroscopy is 214 nm. If there are 9.00×1010 atoms of zinc e

KengaRu [80]

Answer:

$8.4\cdot 10^{-8}J$

Explanation:

The energy emitted by a single photon is given by:

$E=\frac{hc}{\lambda}$

where

h is the Planck constant

c is the speed of light

$\lambda$ is the wavelength of the photon

For the photons emitted by the zinc atoms,

$\lambda = 214 nm = 214 \cdot 10^{-9} m$

So the energy of a single photon emitted is

$E=\frac{(6.63\cdot 10^{-34})(3\cdot 10^8)}{214\cdot 10^{-9}}=9.3\cdot 10^{-19}J$

And since the number of atoms is

$N=9.0\cdot 10^{10}$

The total energy emitted will be

$E=NE_1 = (9.0\cdot 10^{10})(9.3\cdot 10^{-19})=8.4\cdot 10^{-8}J$

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4 years ago

How many wolves are in the Southeast US

charle [14.2K]

Approximately 100-120 wolves

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4 years ago

Read 2 more answers

Question 8 of 10

-BARSIC- [3]

Answer:

The correct answer is the Convex lens. An image is formed when a ray of light coming from a point intersects at another point. The image is formed by the real intersection of light. The image is formed by the virtual intersection of Light.

here is the site : textbook.com

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2 years ago