Answer:
Formula for gravitational force F = G M1 * M2 / R^2 where G is the gravitational constant
F2 / F1 = (R1 / R2)^2 = 1/2 where F2 is the required force
R2 = (2)^1/2 R1 distance for R2 to be 1/2 force at R1
Since force is proportional to the square of the distance of separation, increasing the distance of separation by 2^2 will halve the force
Answer:
Part 1) The value of y=6
Part 2) ED=36, DB=36 and EB=72
Step-by-step explanation:
In this problem we know that
ED=DB -----> equation A
EB=ED+DB -----> equation B
The point D is the midpoint ED
see the attached figure to better understand the problem
step 1
Find the value of y
Substitute the given values in the equation A

solve for y



step 2
Find the value of ED,DB and EB

substitute the value of y

Remember that
ED=DB
therefore

Find the value of EB
EB=ED+DB

It helps identify the steps
Use this rule: √ab = √a√b
√36√a^10√b^2
Since 6 * 6 = 36, the square root of 36 is 6
6√a^10√b^2
Simplify √a^10 to a^5
6a^5√b^2
Simplify √b^2 to b
6a^5b
<u>Answer: B: 6a^5b</u>