For this we need to use several formulas:
v = a*t
This simply means that after 1 second we will have some speed and if we double time, speed will double as well.
But, relation time-traveled distance isn't linear. Traveled distance we calculate:
s = 1/2*a*t^2 we can say that h=s
so if we double time, traveled distance will increase 4 times because of square relation between time and traveled distance.
New traveled distance (h2) will be: h2=4*h
b) Because distance depends on gravity acceleration in free fall h2 will certainly change but the relation h2=4*h will remain the same.
Explanation:
1.The light reflected from the CD/DVD or soap bubble or oil film forms an interference with the surrounding light. The inference both constructive and destructive making some color appear and some disappear.
2.As light behaves as wave it will interfere differently at different angles. At certain angle it will interfere constructively and at certain angle it will interfere destructively making some color brighter and some disappear. So, at different angles the color are different.
Answer:
Explanation:
Given
radius
Charge on surface
Point Charge inside sphere
Electric Field at
Treating Surface charge as Point charge and applying Gauss law
where A=surface area up to distance r
The answer is either
b A system in which Newton's Laws are valid
or
c A system in which there are no external forces.
Explanation:
not a, and not d
There are energy changes in a closed system.
A closed system obeys the conservation laws in its physical description.