Dispersion occurs due to the different degrees of refraction experienced by different colours of light. Light of different colours may travel with the same speed in a vacuum, but they travel at different speeds in some refracting medium. The speed of violet light is relatively lower than that of red light.
Explanation:
(a) Since, it is given that the blocks are identical so distribution of charge will be uniform on both the blocks.
Hence, final charge on block A will be calculated as follows.
Charge on block A =
= 4.35 nC
Therefore, final charge on the block A is 4.35 nC.
(b) As it is given that the positive charge is coming on block A
. This means that movement of electrons will be from A to B.
Thus, we can conclude that while the blocks were in contact with each other then electrons will flow from A to B.
1 kilogram = 1,000 grams
1 kilogram = 1,000,000 milligrams
<u>Answer</u>
3.4 s
<u>Explanation</u>
The question can be solve by using the 2nd Newton's law of motion.
s = ut + 1/2at²
Before she is pushed, the initial velocity is zero.
u = 0
Now the equation becomes
s = 0 + 1/2at²
s = 1/2at²
25 = 1/2 × 4.3 × t²
50 = 4.3t²
t² = 50/4.3
= 11.628
t = √11.628
= 3.4 s
I don't know I'm just a troll.