Answer:
The correct options are;
Both involve the formation of solid particles from nebular materials
Both involve the work of gravitational push on nebular materials
Explanation:
Planetesimals are thought to be the product of grains of cosmic dusts that are found in the debris and protoplanetary discs, such that hundreds of planet forming embrayos are considered to be the result of the collisions of planetesimals that collide with each other to form larger embrayos
Protoplanets is a large planetary body with a stratified interior due to internal melting that has taken place. They originate in the protoplanetary discs from the collision of planetesimals that are up to a kilometer in size.
To solve this problem it is necessary to apply the concepts related to the law of Malus which describe the intensity of light passing through a polarizer. Mathematically this law can be described as:
Where,
Indicates the intensity of the light before passing through the polarizer
I = Resulting intensity
= Indicates the angle between the axis of the analyzer and the polarization axis of the incident light
From the law of Malus when the light passes at a vertical angle through the first polarizer its intensity is reduced by half therefore
In the case of the second polarizer the angle is directly 60 degrees therefore
In the case of the third polarizer, the angle is reflected on the perpendicular, therefore, its angle of index would be
Then,
Then the intensity at the end of the polarized lenses will be equivalent to 0.09375 of the initial intensity.
1.COVALENT BOND [c] 2. Ionic bond [d] 3. Ionic bond [d] 4. a reaction where energy is released [b] 5. 2FE2C03=4FE=3CO2 [a] 6. The mass of reactant must be equal to the number of mass of the product [a] 7. Valence electrons [a] 8. Atomic number [a] 9. combustion [c] 10. More nitrogen in the nitrogen cycle [a]
L=G·d
L=600N·3m=1800J
P=L/Δt=1800J/4s=450W
Rolling friction is less than sliding friction
