Abaseball is traveling (+30 m/s) and is hit by a bat. it leaves the bat traveling (-40 m/s). what is the change in the velocity? remember that direction is what makes velocity different than speed.

Explanation:

Change in velocity can be calculated by subtracting initial velocity from final velocity. The expression for the same is as follows.

where,     = change in velocity

                = final velocity

                = initial velocity

It is given that initial velocity is +30 m/s and final velocity is -40 m/s. Thus, calculate the change in velocity as follows.

                        = -40 m/s - (+30 m/s)

                        = (-40 - 30) m/s

                        = -70 m/s

Therefore, the change in the velocity -70 m/s.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

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