Find the acceleration due to earth’s gravity at the distance of the moon, which is on average 3.84 × 10^8 m from the center of earth.

Explanation:

As we know that acceleration due to gravity is given as

here we know that

(mass of earth)

r = distance at which acceleration is to be find out

now from the formula of acceleration due to gravity we know

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i just did this and got a 100.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form