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3 years ago

The glowing of a neon light is caused by electrons emitting energy as they

Physics

2 answers:

Crazy boy [7]3 years ago

6 0

Move from higher to lower energy levels

Bumek [7]3 years ago

5 0

Answer:

Electrons move from higher energy level to lower energy level emitting light

Explanation:

Neon is a noble gas and inert in nature which means that it doesn't form bonds with any other atom but if enough electric voltage is applied to it electrons from it will be excited and move to high energy states although momentarily. When these electrons come back to their original energy states they release the excess energy in form of photons which is seen by us as the light coming from the neon light sources.

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_________ transport is when something passes thru the cell membrane without any input of energy.

Schach [20]

Passive is the correct answer

7 0

3 years ago

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A 1090 kg car moving +11.0 m/s

stiks02 [169]

The mass of the second car is 1434.21 kg

<u>Explanation:</u>

Using law of conservation of momentum,

$m_{1} u_{1}+m_{2} u_{2}=\left(m_{1}+m_{2}\right) v$

Given:

$m_{1}$ = 1090 kg

$u_{1}$ = 11 m/s

$u_{2}$ = 0

v = 4.75 m/s

We need to find $m_{2}$

When substituting the given values in the above equation, we get

$(1090 \times 11)+\left(m_{2} \times 0\right)=\left(1090+m_{2}\right) 4.75$

$11990=5177.5+4.75 m_{2}$

$4.75 m_{2}=11990-5177.5$

$4.75 m_{2}=6812.5$

$m_{2}=\frac{6812.5}{4.75}=1434.21 \mathrm{kg}$

6 0

3 years ago

Which of the following statements best explains why elements in the same family of the periodic table have similar bonding prope

slava [35]

Answer: D. The elements have the same number of valence electrons

Explanation: The chemical reactivity of elements is governed by the valence electrons present in the element.

The elements present in the same group or vertical column have similar valence configurations and thus behave similarly in chemical reactions or have similar bonding properties.

For Example: Both fluorine and chlorine belong to same family or group and both have 7 electrons in their valence shell and thus accept single electron to attain noble gas configuration.

$F:9:1s^22s^22p^5$

$F^-:10: 1s^22s^22p^6$

$Cl:17:1s^22s^22p^63s^23p^5$

$Cl^-:18:1s^22s^22p^63s^23p^6$

thus both would bond with a cation bearing a single positive charge.

3 0

3 years ago

A high ____will have a short wavelength.

Sphinxa [80]

Question:

A high ____will have a short wavelength

Answer:

That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength. Light waves have very, very short wavelengths

Explanation:

Hope it help

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3 years ago

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The ratio of output power to input power, in percent, is called

kow [346]

That ratio is called"efficiency". It doesn't need to be a percent.
It can just as well be a fraction or a decimal number.

3 0

3 years ago