Violet is at the end of the spectrum so there for it has the highest frequency
Answer:
Fg = 4.2*10²² N
Explanation:
The gravitational force between any two masses, provided that can be approximated by point masses (comparing their diameters with the distance between them), obeys the Newton's Universal Law of Gravitation, which states that the force (always attractive) is proportional to the product of the masses and inversely proportional to the square of the distance between them (this as a consequence of our Universe being three-dimensional), as follows:

So, if one of the masses increases 6 times, the force between them will be directly 6 times larger, so the new magnitude of the force will be as follows:
Fg₂ = Fg₁*6 = 7*10²¹ N* 6 = 4.2*10²² N
Given:
Applied stress, 
Critical Resolved Stress, 
Solution:
a). According to the question, orientation of tensile load is along [1 1 1],

Now, for resolved shear stress,
along [1 0 1] within (1 1 T)
let '
' be the angle between [1 1 1] and [1 0 1], then by coordinate formula:
= 
= 
let '
' be the angle between [1 1 1] and [1 1 1], then by coordinate formula:
= 1
Now, for the resolved components along [1 0 1]
= 
=
= 0.3673 MPa
b). For required tensile stress to produce
:


