The gravitational force that earth exerts on an object is inversely proportional to the square of the distance between the center of the earth and the object. when bill is on the surface of earth, 4,000 miles from the center, the gravitational force is 600 newtons. what is the gravitational force (in newtons) that the earth exerts on him when he's standing on the moon, 240,000 miles from the center of the earth? express your answer as a fraction.

Step-by-step explanation:

Let d be the distance from Bill to the center of the Earth and f be the gravitational force that the Earth exerts on him. Since f is inversely proportional to , for some constant k. Since the force when Bill is on the surface of Earth is 600 Newtons, . Therefore, if we let x be the force that the Earth acts on Bill with when he is on the Moon,

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

i think it is 18

step-by-step explanation: