The answer is Stay In Place
Answer:
Maximum Power = 144.3 D
The associated focal length of the lens = 
Explanation:
According to the Lens maker's Formula:

where;
= the refractive index of the medium
and
= radius of curvature on each surface
For a convex lens, The radius of curvature in the front surface will be positive and that of the second surface will be negative . Therefore;

At maximum power

= 
This Implies

Therefore; the power is given by the formula:


= 144.3 D
The moons belong to the following planets in the following order:
1. Callisto ==> Jupiter
2. Deimos ==> Mars
3. Europa ==> Jupiter
4. Ganymede ==>Jupiter
5. Triton ==> Neptune
6. Titan ==> Saturn
7. Phobos ==> Mars
8. Io ==> Jupiter
Hope that helped =)
Answer:2987.7 J
Explanation:
Given
sled weight is 
Tension in rope 
Time interval 
velocity of sled 
here speed is equal to velocity which is constant therefore acceleration is zero
thus 
Distance traveled in 

considering surface to be friction less
thus
will do work on sled



