Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the hinges, and the second child pushes at a distance of 0.450 m. What force must the second child exert to keep the door from moving

Explanation:

We shall apply principle of moment to solve the problem .

For rotational balance , moment of force created by both the children will be equal and opposite .

moment created by one child = 17.5 x .6 = 10.5 Nm

moment of force created by other child = F x .45 Nm where F is required force

F x .45 = 10.5

F = 23.33 N .

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

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6