Calculate the change in pe of 8 million kg of water dropping 50 m over niagara falls

"4,000,000,000 J" is the "Potential Energy" of water dropping over "Niagara falls".

Explanation:

The body possess some energy according to the position of the object that is the when an object is placed at a height it stores some energy it is called "Potential Energy".

Formula used to calculate the "Potential Energy" is

Where, "m" is mass of an object given that 8,000,000 kg, "g" is acceleration due to gravity is and "h" is height of the object is 50 m.

Substitute the given values in the formula,

Potential energy =

Potential energy = 4,000,000,000 J

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

gas and liquid