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4 years ago

What happens when electrons return to a lower level energy level

2 answers:

8 0

When an electron finds itself in a situation where it falls to a lower energy level, the electron then forces itself to release energy and many times light is omitted. Any energy any light emitted is equal to the difference in energy between two energy levels.

Lady_Fox [76]4 years ago

4 0

The electron releases a photon of electromagnetic energy.

Learn more at: http://scienceprimer.com/bohr-atom

Hoped this helped

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A student claims that gravitational fields exist between objects that are not in contact with each other. She creates a diagram

VashaNatasha [74]

Answer:

Option B. The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.

Explanation:

The force of attraction between two masses is given by the following equation:

F = GM₁M₂ / r²

Where:

F => is the force of attraction

M₁ and M₂ => are the masses of the two objects

G => is the gravitational constant.

r => is the distance between the two objects

From the above formula,

The force of attraction (F) is directly proportional to the product of the two masses and inversely proportional to the square of their apart.

This implies that:

1. An increase in the masses of the object will bring about an increase in the force of attraction and a decrease in the masses will leads to a decrease in the force of attraction.

2. An increase in the distance between the two masses will leads to a decrease in the force of attraction and a decrease in the distance between the two masses will lead to an increase in the force of attraction.

Considering the options given in the question above, option B gives the correct answer to the question.

8 0

4 years ago

All Houston Methodist buildings system wide have an emergency power generator that turns on to supply emergency power after norm

lesya692 [45]

Answer:

D. 10 seconds

Explanation:

All Houston Methodist Hospital buildings employs the use of EPSS(Emergency Power Supply System). This system employs the use of an emergency power generator that turns on to supply emergency power after normal power shuts down within 10 seconds during power outage.

Due to it being used in a hospital the importance of this emergency power system cannot be overemphasized as it is used to provide power supply to hospital equipment such as life support machines etc.

3 0

3 years ago

A plane traveling horizontally at 120 m/s over flat ground at an elevation of 3610 m must drop an emergency packet on a target

antoniya [11.8K]

Answer:

Explanation:

Horizontal displacement

x = 120 t

Vertical position

y = 3610 - 4.9 t²

y = 0 for the ground

0 = 3610 - 4.9 t²

t = 27.14 s

This is the time it will take to reach the ground .

During this period , horizontal displacement

x = 120 x 27.14 m

= 3256.8 m

So packet should be released 3256.8 m before the target.

8 0

3 years ago

Read 2 more answers

The normal is a line perpendicular to the reflecting surface at the point of incidence.

ladessa [460]

Answer:

True

Explanation:

The normal line is defined as the line which is perpendicular to the reflecting surface at the point where the incident ray meet with the reflecting surface.

The angle of incident is defined as the angle which is subtended by the incident ray with respect to the normal ray by consider the normal ray as the base line and angle is measured from the point where incident ray is incident on the reflecting surface of the mirror.

Similarly reflecting ray can be defined as the ray which is reflected after the incident of a ray and the angle subtended by the reflecting ray is measure with respect to normal ray by considering normal ray as a base line.

Therefore, the normal ray is the perpendicular line to the reflecting surface at the point of incidence.

4 0

3 years ago

When light goes from one material into another material having a HIGHER index of refractionA) its speed decreases but its wavele

Mnenie [13.5K]

Answer:

E) its speed and wavelength decrease, but its frequency stays the same

Explanation:

First of all, the frequency of a light wave does not depend on the medium, while wavelength and speed do. Therefore, the frequency remains costant.

In particular, the speed of light in a medium is given by:

$v=\frac{c}{n}$

where c is the speed of light in a vacuum and n is the index of refraction. From the formula, we see that v and n are inversely proportional: so, when the light moves into a material with higher index of refraction, its speed decreases.

Moreover, speed is related to wavelength by

$v=\lambda f$

where $\lambda$ is the wavelength and f is the frequency. Since the two quantities are directly proportional, this means that since the speed decreases, the wavelength decreases as well.

So, the correct choice is

E) its speed and wavelength decrease, but its frequency stays the same

5 0

3 years ago

Read 2 more answers