Answer:
Jackson 2: Smart 3: Ahmed
Explanation:
square + circle = egg
oops, wrong guy
Answer:
The average force exerted on the window due to two snowballs is 6 N
Explanation:
Given:
Mass of snowballs
Kg
Velocity of snowball ![v = 10 \frac{m}{s}](https://tex.z-dn.net/?f=v%20%3D%2010%20%5Cfrac%7Bm%7D%7Bs%7D)
For finding the average force,
Force is equal to the change in momentum,
![F = \frac{dP}{dt}](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7BdP%7D%7Bdt%7D)
Here, final velocity is zero so we write,
![F = \frac{mv}{1}](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7Bmv%7D%7B1%7D)
Where
sec
![F = 300 \times 10^{-30} \times 10](https://tex.z-dn.net/?f=F%20%3D%20300%20%5Ctimes%2010%5E%7B-30%7D%20%5Ctimes%2010)
N
Above value of force is due to one ball, but here given in question there are two ball,
![F = 3 \times 2](https://tex.z-dn.net/?f=F%20%3D%203%20%5Ctimes%202)
N
Therefore, the average force exerted on the window due to two snowballs is 6 N
The spiral structure emerges when galactic clusters (open), H II regions and O & B type stars (young stars) are used as tracers. We know this to be true as other pinwheel galaxies exhibit the same patterns across these tracers as in the milky way.
Answer:
Photopolymerization is the term for hardening or curing the sealant or composite material by exposing the material to a curing light
Explanation:
It the process through which a photopolymer reacts to the radiations in presence of the Ultra-violet light. Photopolymers refers to those materials and liquid or the plastic resins that are hardened in presence of light source such as the lasers or the lamps. When these materials are irradiated, they undergo chemical reactions and they are hardened and become solid, and hence the process called photopolymerization. Photopolymerization is majorly used in the coating and printing industries and in also in dentistry to fill the top of teeth and prevent the cavities