Calculate the gravitational force between a baseball and earth. a baseball has a radius of 0.075 m and a mass of 0.145 kg. earth has a mass of 5.9742•10^24 kg and a radius of 6.3710•10^6 m. assume the baseball is resting on earths surface.

1.424 N

Explanation:

According to Newton's Universal Law of Gravitation:

(1)

Where:

is the gravitational force between the ball and Earth

the Universal Gravitational Constant

is the mass of the ball

is the mass of the Earth

is the distance between the ball and the Earth, being the radius of the ball and the radius of the Earth

So, rewritting (1):

(2)

(3)

Finally:

(4)

b

explanation:

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