Magnitudes físicas y sus unidades ; poner a que magnitud pertenece = 4 J
= 1,3 N
= 2 m/sg2
= 7,1 kg

1. Energía = 4 J

2. Fuerza = 1,3 N

3. Aceleración = 2 m/s²

4. Masa = 7,1 kg

Explanation:

Magnitudes físicas y sus unidades;

1. Energía = 4 Joules

Energía se puede definir como la habilidad (capacidad) para realizar un trabajo.

2. Fuerza = 1,3 Newton

Fuerza = masa * aceleración

3. Aceleración = 2 m/s²

Aceleración se puede definir como la tasa de cambio de la velocidad de un objeto con respecto al tiempo.

Esto simplemente significa que la aceleración viene dada por la resta de la velocidad inicial de la velocidad final a lo largo del tiempo.

4. Masa = 7,1 Kilograms

La masa se puede definir como una medida de la cantidad de materia de la que se compone un objeto o un cuerpo. La unidad de medida estándar de la masa de un objeto o un cuerpo son los kilogramos.

scattering of light by tiny particles in air to produce the colors we see on sky, is dependent on the following factors:

(i) wavelength of light

(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

according to rayleigh's law of scattering, the amount of scattering is inversely proportional to the fourth power of its wavelength. shorter the wavelength, greater is its scattering. hence violet/blue light is scattered more than red.

sun's light is a composite light ( visible light) with wavelengths in the range 400 nm (violet) to 700 nm (red). as sunlight passes through our atmosphere, the molecules of air scatter light according to their wavelengths. during sunrise and sunset, the sun's position is below the horizon. hence light from the sun travels a greater distance in the atmosphere when compared to its position a noon.

as sunlight enters the earth's atmosphere, blue light is scattered away and at the end of its journey in the sky, only red and orange wavelengths remain in the beam.

hence at sunrise and sunset, the sky appears reddish orange.

more than, less

less than, more