A 4kg rock is dropped from 5 m. There is no friction. A) What kind of energy does it have before?

B) What kind of energy does it have after?

C) Does the energy before equal to the energy after?

D) Was work done?

E) Put the above into The Law of Conservation of Energy.

F) Solve for the speed of the object that's at the bottom. (right after the rock drops)

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

idk

step-by-step explanation: