Under blue light, an apple will appear black because it absorbs the blue light and has no red light to reflect. In contrast, if magenta light is shined on the apple, it will appear red because magenta light is comprised of red and blue light. The blue light will still be absorbed, but the red will be reflected.
In order to keep the object moving in the same direction and with same speed, its initial and final momentum should be zero.
∴ Net force on the object should be zero.
It is gravity¿ what is the question?
Answer:
t= 1.34x10power 6 sec
Explanation:
l = lo ( 1+b / 1+b /)1/2 where L = wave length
(700mn/589mm)2 = 1.41 = 1+b/1-b
1.41-1.41b = 1+b
0.41= 2.41b
b = 0.17
v=5.1 x 10 7 m/s
v = at
t = a/v = 5.1 x 10power 7 m/s / 38m/s2= 1.34*10 power 6
t= 1.34x10power 6 sec