What is the magnetic flux through the coil in the direction of the +x+x-axis (Hint: The identity sin(A+B)+sin(A−B)=2sinAcosBsin⁡(A+B )+sin⁡(A−B)=2sin⁡Acos⁡B may prove helpful.)

8 meters above the spring

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

no. dot product   =0 when vecs at right angles