Alguien que me pueda ayudar con estas tres preguntas se los agradecería muchísimo son de mecánica

No se está seguro de que la ecuación para el periodo T de un péndulo simple de longitud les: T=2√⁄o T=2√⁄g.-aceleración debida a la gravedad.

Si x y t representan la distancia y el tiempo respectivamente en la ecuación: =122,¿Qué dimensiones tiene C?

Sustraer 0.57 de 3.6,¿cuál es el resultado?

i'm just gonna leave this comment here, so i can get a challange done-

explanation:

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

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.

i don't understand. explain it clearly