The planet mars has two moons, deimos and phobos. phobos is about 9,000 km from mars and is about six times more massive than deimos. deimos is about 23,000 km from mars. upon which moon does mars exert a stronger gravitational force? not enough informationphobosdeimos and phobos equallydeimos

F = G(m1 m2)/(r)^2

Let m1 be the mass of Mars
Let m2 be the mass of Deimos.
Therefore, 6m2 is the mass of Phobos.

We know that G, m1, and m2 are just constants.

Phobos:

Fp = G(m1 * 6m2)/(9000000m)^2 = 7 × 10^(-14) * G m1 m2

Deimos

Fd = G(m1 * m2)/(23000000m)^2 = 2 × 10^(-15) * G m1 m2

Mars exerts a stronger gravitational force on Phobos since Fp > Fd

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

Less stable  hope this