Explain why each element has a unique spectrum of absorption or emission lines.

1 answer:

6 0

Each elements emission spectrum is distinct because each element has a different set of electron energy levels. The emission lines correspond to the differences between various pairs of the many energy levels. The lines (photons) are emitted as electrons fall from higher energy orbitals to lower energies.

You might be interested in

PLEASE I NEED HELP I AM REALLY STUCK!!!

AlekseyPX

Answer: Force = Mass X Acceleration

F = 5 x 2

F = 10 N

8 0

3 years ago

A fisherman is fishing from a bridge and is using a "42.0-N test line." In other words, the line will sustain a maximum force of

lara31 [8.8K]

Answer:

(a) 42 N

(b)36.7 N

Explanation:

Nomenclature

F= force test line (N)

W : fish weight (N)

Problem development

(a) Calculating of weight of the heaviest fish that can be pulled up vertically, when the line is reeled in at constant speed

We apply Newton's first law of equlibrio because the system moves at constant speed:

∑Fy =0

F-W= 0

42N -W =0

W = 42N

(b) Calculating of weight of the heaviest fish that can be pulled up vertically, when the line is reeled with an acceleration whose magnitude is 1.41 m/s²

We apply Newton's second law because the system moves at constant acceleration:

m= W/g , m= W/9.8 , m:fish mass , W: fish weight g:acceleration due to gravity

∑Fy =m*a

m= W/g , m= W/9.8 , m:fish mass , W: fish weight g:acceleration due to gravity

F-W= ( W/9.8 )*a

42-W= ( W/9.8 )*1.41

42= W+0.1439W

42=1.1439W

W= 42/1.1439

W= 36.7 N

8 0

3 years ago

Which organisms play roles similar to organisms in water ecosystem

lina2011 [118]

Is there a multiple choice?

4 0

4 years ago

The moon travels in a nearly circular path around earth. If somehow gravitation between earth and moon disappeared, how would th

erma4kov [3.2K]

The gravitational force is a balance between centripetal and centrifugal force that keeps the planets in their orbits when they are in motion. The gravitational force is a factor of the masses of the Earth and moon and the distance between them. If there were no gravitational force, the moon would stay out of the circular path and follow the direction as shown in the picture.